Home / 5,609.20-8,411.68-1,659.68

Finding the Fourth Proportional to 5,609.20, 8,411.68 and 1,659.68

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Solution

The fourth proportional to 5,609.20, 8,411.68 and 1,659.68 is: 2,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.20 : 8,411.68 = 1,659.68 : x
  2. Step 2: Convert to fraction form
    5,609.20/8,411.68 = 1,659.68/x
  3. Step 3: Cross multiply
    5,609.20x = 8,411.68 × 1,659.68
  4. Step 4: Simplify right side
    5,609.20x = 13,960,697.06
  5. Step 5: Solve for x
    x = 13,960,697.06/5,609.20
  6. Step 6: Final answer
    x = 2,488.89

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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.