Home / 3,127.20-4,320.60-3,096.48

Finding the Fourth Proportional to 3,127.20, 4,320.60 and 3,096.48

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Solution

The fourth proportional to 3,127.20, 4,320.60 and 3,096.48 is: 4,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.20 : 4,320.60 = 3,096.48 : x
  2. Step 2: Convert to fraction form
    3,127.20/4,320.60 = 3,096.48/x
  3. Step 3: Cross multiply
    3,127.20x = 4,320.60 × 3,096.48
  4. Step 4: Simplify right side
    3,127.20x = 13,378,651.49
  5. Step 5: Solve for x
    x = 13,378,651.49/3,127.20
  6. Step 6: Final answer
    x = 4,278.16

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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.