Home / 8,480.05-12,721.24-2,931.91

Finding the Fourth Proportional to 8,480.05, 12,721.24 and 2,931.91

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Solution

The fourth proportional to 8,480.05, 12,721.24 and 2,931.91 is: 4,398.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.05 : 12,721.24 = 2,931.91 : x
  2. Step 2: Convert to fraction form
    8,480.05/12,721.24 = 2,931.91/x
  3. Step 3: Cross multiply
    8,480.05x = 12,721.24 × 2,931.91
  4. Step 4: Simplify right side
    8,480.05x = 37,297,516.40
  5. Step 5: Solve for x
    x = 37,297,516.40/8,480.05
  6. Step 6: Final answer
    x = 4,398.26

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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.