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Finding the Fourth Proportional to 2,102.92, 2,901.49 and 1,404.43

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Solution

The fourth proportional to 2,102.92, 2,901.49 and 1,404.43 is: 1,937.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.92 : 2,901.49 = 1,404.43 : x
  2. Step 2: Convert to fraction form
    2,102.92/2,901.49 = 1,404.43/x
  3. Step 3: Cross multiply
    2,102.92x = 2,901.49 × 1,404.43
  4. Step 4: Simplify right side
    2,102.92x = 4,074,939.60
  5. Step 5: Solve for x
    x = 4,074,939.60/2,102.92
  6. Step 6: Final answer
    x = 1,937.75

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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.