Home / 5,138.46-7,707.69-2,948.58

Finding the Fourth Proportional to 5,138.46, 7,707.69 and 2,948.58

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Solution

The fourth proportional to 5,138.46, 7,707.69 and 2,948.58 is: 4,422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.46 : 7,707.69 = 2,948.58 : x
  2. Step 2: Convert to fraction form
    5,138.46/7,707.69 = 2,948.58/x
  3. Step 3: Cross multiply
    5,138.46x = 7,707.69 × 2,948.58
  4. Step 4: Simplify right side
    5,138.46x = 22,726,740.58
  5. Step 5: Solve for x
    x = 22,726,740.58/5,138.46
  6. Step 6: Final answer
    x = 4,422.87

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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.