Home / 5,439.76-8,158.73-2,107.52

Finding the Fourth Proportional to 5,439.76, 8,158.73 and 2,107.52

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Solution

The fourth proportional to 5,439.76, 8,158.73 and 2,107.52 is: 3,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.76 : 8,158.73 = 2,107.52 : x
  2. Step 2: Convert to fraction form
    5,439.76/8,158.73 = 2,107.52/x
  3. Step 3: Cross multiply
    5,439.76x = 8,158.73 × 2,107.52
  4. Step 4: Simplify right side
    5,439.76x = 17,194,665.91
  5. Step 5: Solve for x
    x = 17,194,665.91/5,439.76
  6. Step 6: Final answer
    x = 3,160.93

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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.