Home / 5,010.24-7,515.68-1,678.36

Finding the Fourth Proportional to 5,010.24, 7,515.68 and 1,678.36

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Solution

The fourth proportional to 5,010.24, 7,515.68 and 1,678.36 is: 2,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.24 : 7,515.68 = 1,678.36 : x
  2. Step 2: Convert to fraction form
    5,010.24/7,515.68 = 1,678.36/x
  3. Step 3: Cross multiply
    5,010.24x = 7,515.68 × 1,678.36
  4. Step 4: Simplify right side
    5,010.24x = 12,614,016.68
  5. Step 5: Solve for x
    x = 12,614,016.68/5,010.24
  6. Step 6: Final answer
    x = 2,517.65

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1.5x scale

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.