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Finding the Fourth Proportional to 5,622.50, 7,762.13 and 3,384.88

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Solution

The fourth proportional to 5,622.50, 7,762.13 and 3,384.88 is: 4,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.50 : 7,762.13 = 3,384.88 : x
  2. Step 2: Convert to fraction form
    5,622.50/7,762.13 = 3,384.88/x
  3. Step 3: Cross multiply
    5,622.50x = 7,762.13 × 3,384.88
  4. Step 4: Simplify right side
    5,622.50x = 26,273,854.96
  5. Step 5: Solve for x
    x = 26,273,854.96/5,622.50
  6. Step 6: Final answer
    x = 4,672.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.