Home / 1,146.20-1,719.09-452.66

Finding the Fourth Proportional to 1,146.20, 1,719.09 and 452.66

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Solution

The fourth proportional to 1,146.20, 1,719.09 and 452.66 is: 678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.20 : 1,719.09 = 452.66 : x
  2. Step 2: Convert to fraction form
    1,146.20/1,719.09 = 452.66/x
  3. Step 3: Cross multiply
    1,146.20x = 1,719.09 × 452.66
  4. Step 4: Simplify right side
    1,146.20x = 778,154.68
  5. Step 5: Solve for x
    x = 778,154.68/1,146.20
  6. Step 6: Final answer
    x = 678.90

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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.