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Finding the Fourth Proportional to 5,816.80, 8,679.02 and 5,403.88

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Solution

The fourth proportional to 5,816.80, 8,679.02 and 5,403.88 is: 8,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,816.80 : 8,679.02 = 5,403.88 : x
  2. Step 2: Convert to fraction form
    5,816.80/8,679.02 = 5,403.88/x
  3. Step 3: Cross multiply
    5,816.80x = 8,679.02 × 5,403.88
  4. Step 4: Simplify right side
    5,816.80x = 46,900,382.60
  5. Step 5: Solve for x
    x = 46,900,382.60/5,816.80
  6. Step 6: Final answer
    x = 8,062.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.