Home / 1,439.06-2,158.68-452.02

Finding the Fourth Proportional to 1,439.06, 2,158.68 and 452.02

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Solution

The fourth proportional to 1,439.06, 2,158.68 and 452.02 is: 678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.06 : 2,158.68 = 452.02 : x
  2. Step 2: Convert to fraction form
    1,439.06/2,158.68 = 452.02/x
  3. Step 3: Cross multiply
    1,439.06x = 2,158.68 × 452.02
  4. Step 4: Simplify right side
    1,439.06x = 975,766.53
  5. Step 5: Solve for x
    x = 975,766.53/1,439.06
  6. Step 6: Final answer
    x = 678.06

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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.