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Finding the Fourth Proportional to 3,842.47, 5,763.61 and 1,068.85

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Solution

The fourth proportional to 3,842.47, 5,763.61 and 1,068.85 is: 1,603.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.47 : 5,763.61 = 1,068.85 : x
  2. Step 2: Convert to fraction form
    3,842.47/5,763.61 = 1,068.85/x
  3. Step 3: Cross multiply
    3,842.47x = 5,763.61 × 1,068.85
  4. Step 4: Simplify right side
    3,842.47x = 6,160,434.55
  5. Step 5: Solve for x
    x = 6,160,434.55/3,842.47
  6. Step 6: Final answer
    x = 1,603.25

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1.5x scale

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.