Home / 1,681.24-2,319.46-1,240.19

Finding the Fourth Proportional to 1,681.24, 2,319.46 and 1,240.19

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Solution

The fourth proportional to 1,681.24, 2,319.46 and 1,240.19 is: 1,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.24 : 2,319.46 = 1,240.19 : x
  2. Step 2: Convert to fraction form
    1,681.24/2,319.46 = 1,240.19/x
  3. Step 3: Cross multiply
    1,681.24x = 2,319.46 × 1,240.19
  4. Step 4: Simplify right side
    1,681.24x = 2,876,571.10
  5. Step 5: Solve for x
    x = 2,876,571.10/1,681.24
  6. Step 6: Final answer
    x = 1,710.98

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,682.24, 2,320.84 and 1,241.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.