Home / 5,639.16-8,459.82-1,742.88

Finding the Fourth Proportional to 5,639.16, 8,459.82 and 1,742.88

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Solution

The fourth proportional to 5,639.16, 8,459.82 and 1,742.88 is: 2,614.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.16 : 8,459.82 = 1,742.88 : x
  2. Step 2: Convert to fraction form
    5,639.16/8,459.82 = 1,742.88/x
  3. Step 3: Cross multiply
    5,639.16x = 8,459.82 × 1,742.88
  4. Step 4: Simplify right side
    5,639.16x = 14,744,451.08
  5. Step 5: Solve for x
    x = 14,744,451.08/5,639.16
  6. Step 6: Final answer
    x = 2,614.65

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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.