Home / 5,439.91-8,152.23-2,315.69

Finding the Fourth Proportional to 5,439.91, 8,152.23 and 2,315.69

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Solution

The fourth proportional to 5,439.91, 8,152.23 and 2,315.69 is: 3,470.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.91 : 8,152.23 = 2,315.69 : x
  2. Step 2: Convert to fraction form
    5,439.91/8,152.23 = 2,315.69/x
  3. Step 3: Cross multiply
    5,439.91x = 8,152.23 × 2,315.69
  4. Step 4: Simplify right side
    5,439.91x = 18,877,996.73
  5. Step 5: Solve for x
    x = 18,877,996.73/5,439.91
  6. Step 6: Final answer
    x = 3,470.28

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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.