Home / 2,347.77-3,240.05-1,353.19

Finding the Fourth Proportional to 2,347.77, 3,240.05 and 1,353.19

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Solution

The fourth proportional to 2,347.77, 3,240.05 and 1,353.19 is: 1,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.77 : 3,240.05 = 1,353.19 : x
  2. Step 2: Convert to fraction form
    2,347.77/3,240.05 = 1,353.19/x
  3. Step 3: Cross multiply
    2,347.77x = 3,240.05 × 1,353.19
  4. Step 4: Simplify right side
    2,347.77x = 4,384,403.26
  5. Step 5: Solve for x
    x = 4,384,403.26/2,347.77
  6. Step 6: Final answer
    x = 1,867.48

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Half scale
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Double scale
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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.