Home / 1,678.10-2,517.75-582.55

Finding the Fourth Proportional to 1,678.10, 2,517.75 and 582.55

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Solution

The fourth proportional to 1,678.10, 2,517.75 and 582.55 is: 874.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.10 : 2,517.75 = 582.55 : x
  2. Step 2: Convert to fraction form
    1,678.10/2,517.75 = 582.55/x
  3. Step 3: Cross multiply
    1,678.10x = 2,517.75 × 582.55
  4. Step 4: Simplify right side
    1,678.10x = 1,466,708.97
  5. Step 5: Solve for x
    x = 1,466,708.97/1,678.10
  6. Step 6: Final answer
    x = 874.03

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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.