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Finding the Fourth Proportional to 5,004.60, 6,891.60 and 4,291.20

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Solution

The fourth proportional to 5,004.60, 6,891.60 and 4,291.20 is: 5,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,004.60 : 6,891.60 = 4,291.20 : x
  2. Step 2: Convert to fraction form
    5,004.60/6,891.60 = 4,291.20/x
  3. Step 3: Cross multiply
    5,004.60x = 6,891.60 × 4,291.20
  4. Step 4: Simplify right side
    5,004.60x = 29,573,233.92
  5. Step 5: Solve for x
    x = 29,573,233.92/5,004.60
  6. Step 6: Final answer
    x = 5,909.21

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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.