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Finding the Fourth Proportional to 3,710.72, 5,566.53 and 1,211.84

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Solution

The fourth proportional to 3,710.72, 5,566.53 and 1,211.84 is: 1,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.72 : 5,566.53 = 1,211.84 : x
  2. Step 2: Convert to fraction form
    3,710.72/5,566.53 = 1,211.84/x
  3. Step 3: Cross multiply
    3,710.72x = 5,566.53 × 1,211.84
  4. Step 4: Simplify right side
    3,710.72x = 6,745,772.61
  5. Step 5: Solve for x
    x = 6,745,772.61/3,710.72
  6. Step 6: Final answer
    x = 1,817.92

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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.