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Finding the Fourth Proportional to 5,572.85, 8,357.90 and 1,874.12

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Solution

The fourth proportional to 5,572.85, 8,357.90 and 1,874.12 is: 2,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.85 : 8,357.90 = 1,874.12 : x
  2. Step 2: Convert to fraction form
    5,572.85/8,357.90 = 1,874.12/x
  3. Step 3: Cross multiply
    5,572.85x = 8,357.90 × 1,874.12
  4. Step 4: Simplify right side
    5,572.85x = 15,663,656.39
  5. Step 5: Solve for x
    x = 15,663,656.39/5,572.85
  6. Step 6: Final answer
    x = 2,810.71

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