Home / 1,439.19-2,155.14-950.76

Finding the Fourth Proportional to 1,439.19, 2,155.14 and 950.76

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Solution

The fourth proportional to 1,439.19, 2,155.14 and 950.76 is: 1,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.19 : 2,155.14 = 950.76 : x
  2. Step 2: Convert to fraction form
    1,439.19/2,155.14 = 950.76/x
  3. Step 3: Cross multiply
    1,439.19x = 2,155.14 × 950.76
  4. Step 4: Simplify right side
    1,439.19x = 2,049,020.91
  5. Step 5: Solve for x
    x = 2,049,020.91/1,439.19
  6. Step 6: Final answer
    x = 1,423.73

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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.