Home / 8,590.24-12,890.22-3,659.37

Finding the Fourth Proportional to 8,590.24, 12,890.22 and 3,659.37

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Solution

The fourth proportional to 8,590.24, 12,890.22 and 3,659.37 is: 5,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.24 : 12,890.22 = 3,659.37 : x
  2. Step 2: Convert to fraction form
    8,590.24/12,890.22 = 3,659.37/x
  3. Step 3: Cross multiply
    8,590.24x = 12,890.22 × 3,659.37
  4. Step 4: Simplify right side
    8,590.24x = 47,170,084.36
  5. Step 5: Solve for x
    x = 47,170,084.36/8,590.24
  6. Step 6: Final answer
    x = 5,491.13

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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.