Home / 1,454.80-2,179.15-1,145.19

Finding the Fourth Proportional to 1,454.80, 2,179.15 and 1,145.19

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Solution

The fourth proportional to 1,454.80, 2,179.15 and 1,145.19 is: 1,715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.80 : 2,179.15 = 1,145.19 : x
  2. Step 2: Convert to fraction form
    1,454.80/2,179.15 = 1,145.19/x
  3. Step 3: Cross multiply
    1,454.80x = 2,179.15 × 1,145.19
  4. Step 4: Simplify right side
    1,454.80x = 2,495,540.79
  5. Step 5: Solve for x
    x = 2,495,540.79/1,454.80
  6. Step 6: Final answer
    x = 1,715.38

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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.