Home / 5,120.76-7,068.42-3,024.75

Finding the Fourth Proportional to 5,120.76, 7,068.42 and 3,024.75

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Solution

The fourth proportional to 5,120.76, 7,068.42 and 3,024.75 is: 4,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.76 : 7,068.42 = 3,024.75 : x
  2. Step 2: Convert to fraction form
    5,120.76/7,068.42 = 3,024.75/x
  3. Step 3: Cross multiply
    5,120.76x = 7,068.42 × 3,024.75
  4. Step 4: Simplify right side
    5,120.76x = 21,380,203.40
  5. Step 5: Solve for x
    x = 21,380,203.40/5,120.76
  6. Step 6: Final answer
    x = 4,175.20

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1.5x scale

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.