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Finding the Fourth Proportional to 1,402.92, 2,101.65 and 1,352.50

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Solution

The fourth proportional to 1,402.92, 2,101.65 and 1,352.50 is: 2,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.92 : 2,101.65 = 1,352.50 : x
  2. Step 2: Convert to fraction form
    1,402.92/2,101.65 = 1,352.50/x
  3. Step 3: Cross multiply
    1,402.92x = 2,101.65 × 1,352.50
  4. Step 4: Simplify right side
    1,402.92x = 2,842,471.30
  5. Step 5: Solve for x
    x = 2,842,471.30/1,402.92
  6. Step 6: Final answer
    x = 2,026.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.