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Finding the Fourth Proportional to 3,643.76, 5,465.64 and 1,562.42

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Solution

The fourth proportional to 3,643.76, 5,465.64 and 1,562.42 is: 2,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.76 : 5,465.64 = 1,562.42 : x
  2. Step 2: Convert to fraction form
    3,643.76/5,465.64 = 1,562.42/x
  3. Step 3: Cross multiply
    3,643.76x = 5,465.64 × 1,562.42
  4. Step 4: Simplify right side
    3,643.76x = 8,539,590.11
  5. Step 5: Solve for x
    x = 8,539,590.11/3,643.76
  6. Step 6: Final answer
    x = 2,343.62

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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.