Home / 3,207.52-4,412.40-2,807.52

Finding the Fourth Proportional to 3,207.52, 4,412.40 and 2,807.52

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Solution

The fourth proportional to 3,207.52, 4,412.40 and 2,807.52 is: 3,862.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.52 : 4,412.40 = 2,807.52 : x
  2. Step 2: Convert to fraction form
    3,207.52/4,412.40 = 2,807.52/x
  3. Step 3: Cross multiply
    3,207.52x = 4,412.40 × 2,807.52
  4. Step 4: Simplify right side
    3,207.52x = 12,387,901.25
  5. Step 5: Solve for x
    x = 12,387,901.25/3,207.52
  6. Step 6: Final answer
    x = 3,862.14

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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.