Home / 1,458.46-2,010.45-1,079.38

Finding the Fourth Proportional to 1,458.46, 2,010.45 and 1,079.38

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Solution

The fourth proportional to 1,458.46, 2,010.45 and 1,079.38 is: 1,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.46 : 2,010.45 = 1,079.38 : x
  2. Step 2: Convert to fraction form
    1,458.46/2,010.45 = 1,079.38/x
  3. Step 3: Cross multiply
    1,458.46x = 2,010.45 × 1,079.38
  4. Step 4: Simplify right side
    1,458.46x = 2,170,039.52
  5. Step 5: Solve for x
    x = 2,170,039.52/1,458.46
  6. Step 6: Final answer
    x = 1,487.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.