Home / 5,007.57-7,512.98-1,720.59

Finding the Fourth Proportional to 5,007.57, 7,512.98 and 1,720.59

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Solution

The fourth proportional to 5,007.57, 7,512.98 and 1,720.59 is: 2,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.57 : 7,512.98 = 1,720.59 : x
  2. Step 2: Convert to fraction form
    5,007.57/7,512.98 = 1,720.59/x
  3. Step 3: Cross multiply
    5,007.57x = 7,512.98 × 1,720.59
  4. Step 4: Simplify right side
    5,007.57x = 12,926,749.66
  5. Step 5: Solve for x
    x = 12,926,749.66/5,007.57
  6. Step 6: Final answer
    x = 2,581.44

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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.