Home / 5,510.38-7,604.49-3,120.31

Finding the Fourth Proportional to 5,510.38, 7,604.49 and 3,120.31

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Solution

The fourth proportional to 5,510.38, 7,604.49 and 3,120.31 is: 4,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.38 : 7,604.49 = 3,120.31 : x
  2. Step 2: Convert to fraction form
    5,510.38/7,604.49 = 3,120.31/x
  3. Step 3: Cross multiply
    5,510.38x = 7,604.49 × 3,120.31
  4. Step 4: Simplify right side
    5,510.38x = 23,728,366.19
  5. Step 5: Solve for x
    x = 23,728,366.19/5,510.38
  6. Step 6: Final answer
    x = 4,306.13

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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.