Home / 5,287.46-7,930.56-1,392.17

Finding the Fourth Proportional to 5,287.46, 7,930.56 and 1,392.17

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Solution

The fourth proportional to 5,287.46, 7,930.56 and 1,392.17 is: 2,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.46 : 7,930.56 = 1,392.17 : x
  2. Step 2: Convert to fraction form
    5,287.46/7,930.56 = 1,392.17/x
  3. Step 3: Cross multiply
    5,287.46x = 7,930.56 × 1,392.17
  4. Step 4: Simplify right side
    5,287.46x = 11,040,687.72
  5. Step 5: Solve for x
    x = 11,040,687.72/5,287.46
  6. Step 6: Final answer
    x = 2,088.09

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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.