Home / 3,330.45-4,995.50-1,139.18

Finding the Fourth Proportional to 3,330.45, 4,995.50 and 1,139.18

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Solution

The fourth proportional to 3,330.45, 4,995.50 and 1,139.18 is: 1,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.45 : 4,995.50 = 1,139.18 : x
  2. Step 2: Convert to fraction form
    3,330.45/4,995.50 = 1,139.18/x
  3. Step 3: Cross multiply
    3,330.45x = 4,995.50 × 1,139.18
  4. Step 4: Simplify right side
    3,330.45x = 5,690,743.02
  5. Step 5: Solve for x
    x = 5,690,743.02/3,330.45
  6. Step 6: Final answer
    x = 1,708.70

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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.