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Finding the Fourth Proportional to 4,999.61, 7,500.56 and 1,712.70

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Solution

The fourth proportional to 4,999.61, 7,500.56 and 1,712.70 is: 2,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.61 : 7,500.56 = 1,712.70 : x
  2. Step 2: Convert to fraction form
    4,999.61/7,500.56 = 1,712.70/x
  3. Step 3: Cross multiply
    4,999.61x = 7,500.56 × 1,712.70
  4. Step 4: Simplify right side
    4,999.61x = 12,846,200.55
  5. Step 5: Solve for x
    x = 12,846,200.55/4,999.61
  6. Step 6: Final answer
    x = 2,569.44

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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.