Home / 1,402.01-2,104.38-1,069.85

Finding the Fourth Proportional to 1,402.01, 2,104.38 and 1,069.85

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Solution

The fourth proportional to 1,402.01, 2,104.38 and 1,069.85 is: 1,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.01 : 2,104.38 = 1,069.85 : x
  2. Step 2: Convert to fraction form
    1,402.01/2,104.38 = 1,069.85/x
  3. Step 3: Cross multiply
    1,402.01x = 2,104.38 × 1,069.85
  4. Step 4: Simplify right side
    1,402.01x = 2,251,376.20
  5. Step 5: Solve for x
    x = 2,251,376.20/1,402.01
  6. Step 6: Final answer
    x = 1,605.82

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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.