Home / 5,130.82-7,079.04-3,454.12

Finding the Fourth Proportional to 5,130.82, 7,079.04 and 3,454.12

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Solution

The fourth proportional to 5,130.82, 7,079.04 and 3,454.12 is: 4,765.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.82 : 7,079.04 = 3,454.12 : x
  2. Step 2: Convert to fraction form
    5,130.82/7,079.04 = 3,454.12/x
  3. Step 3: Cross multiply
    5,130.82x = 7,079.04 × 3,454.12
  4. Step 4: Simplify right side
    5,130.82x = 24,451,853.64
  5. Step 5: Solve for x
    x = 24,451,853.64/5,130.82
  6. Step 6: Final answer
    x = 4,765.68

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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.