Home / 1,154.16-1,731.48-451.52

Finding the Fourth Proportional to 1,154.16, 1,731.48 and 451.52

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Solution

The fourth proportional to 1,154.16, 1,731.48 and 451.52 is: 677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.16 : 1,731.48 = 451.52 : x
  2. Step 2: Convert to fraction form
    1,154.16/1,731.48 = 451.52/x
  3. Step 3: Cross multiply
    1,154.16x = 1,731.48 × 451.52
  4. Step 4: Simplify right side
    1,154.16x = 781,797.85
  5. Step 5: Solve for x
    x = 781,797.85/1,154.16
  6. Step 6: Final answer
    x = 677.37

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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.