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Finding the Fourth Proportional to 6,402.60, 8,832.90 and 4,630.28

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Solution

The fourth proportional to 6,402.60, 8,832.90 and 4,630.28 is: 6,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.60 : 8,832.90 = 4,630.28 : x
  2. Step 2: Convert to fraction form
    6,402.60/8,832.90 = 4,630.28/x
  3. Step 3: Cross multiply
    6,402.60x = 8,832.90 × 4,630.28
  4. Step 4: Simplify right side
    6,402.60x = 40,898,800.21
  5. Step 5: Solve for x
    x = 40,898,800.21/6,402.60
  6. Step 6: Final answer
    x = 6,387.84

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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.