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Finding the Fourth Proportional to 5,672.40, 8,508.62 and 1,723.70

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Solution

The fourth proportional to 5,672.40, 8,508.62 and 1,723.70 is: 2,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.40 : 8,508.62 = 1,723.70 : x
  2. Step 2: Convert to fraction form
    5,672.40/8,508.62 = 1,723.70/x
  3. Step 3: Cross multiply
    5,672.40x = 8,508.62 × 1,723.70
  4. Step 4: Simplify right side
    5,672.40x = 14,666,257.13
  5. Step 5: Solve for x
    x = 14,666,257.13/5,672.40
  6. Step 6: Final answer
    x = 2,585.55

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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.