Home / 1,685.13-2,326.97-1,056.75

Finding the Fourth Proportional to 1,685.13, 2,326.97 and 1,056.75

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Solution

The fourth proportional to 1,685.13, 2,326.97 and 1,056.75 is: 1,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.13 : 2,326.97 = 1,056.75 : x
  2. Step 2: Convert to fraction form
    1,685.13/2,326.97 = 1,056.75/x
  3. Step 3: Cross multiply
    1,685.13x = 2,326.97 × 1,056.75
  4. Step 4: Simplify right side
    1,685.13x = 2,459,020.26
  5. Step 5: Solve for x
    x = 2,459,020.26/1,685.13
  6. Step 6: Final answer
    x = 1,459.25

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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.