Home / 5,458.78-7,532.88-3,100.90

Finding the Fourth Proportional to 5,458.78, 7,532.88 and 3,100.90

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Solution

The fourth proportional to 5,458.78, 7,532.88 and 3,100.90 is: 4,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.78 : 7,532.88 = 3,100.90 : x
  2. Step 2: Convert to fraction form
    5,458.78/7,532.88 = 3,100.90/x
  3. Step 3: Cross multiply
    5,458.78x = 7,532.88 × 3,100.90
  4. Step 4: Simplify right side
    5,458.78x = 23,358,707.59
  5. Step 5: Solve for x
    x = 23,358,707.59/5,458.78
  6. Step 6: Final answer
    x = 4,279.11

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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.