Home / 1,391.08-2,083.55-951.29

Finding the Fourth Proportional to 1,391.08, 2,083.55 and 951.29

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Solution

The fourth proportional to 1,391.08, 2,083.55 and 951.29 is: 1,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.08 : 2,083.55 = 951.29 : x
  2. Step 2: Convert to fraction form
    1,391.08/2,083.55 = 951.29/x
  3. Step 3: Cross multiply
    1,391.08x = 2,083.55 × 951.29
  4. Step 4: Simplify right side
    1,391.08x = 1,982,056.71
  5. Step 5: Solve for x
    x = 1,982,056.71/1,391.08
  6. Step 6: Final answer
    x = 1,424.83

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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.