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Finding the Fourth Proportional to 6,152.68, 8,490.90 and 3,500.20

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Solution

The fourth proportional to 6,152.68, 8,490.90 and 3,500.20 is: 4,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,152.68 : 8,490.90 = 3,500.20 : x
  2. Step 2: Convert to fraction form
    6,152.68/8,490.90 = 3,500.20/x
  3. Step 3: Cross multiply
    6,152.68x = 8,490.90 × 3,500.20
  4. Step 4: Simplify right side
    6,152.68x = 29,719,848.18
  5. Step 5: Solve for x
    x = 29,719,848.18/6,152.68
  6. Step 6: Final answer
    x = 4,830.39

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1.5x scale

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.