Home / 2,510.46-3,761.87-1,988.28

Finding the Fourth Proportional to 2,510.46, 3,761.87 and 1,988.28

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Solution

The fourth proportional to 2,510.46, 3,761.87 and 1,988.28 is: 2,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,510.46 : 3,761.87 = 1,988.28 : x
  2. Step 2: Convert to fraction form
    2,510.46/3,761.87 = 1,988.28/x
  3. Step 3: Cross multiply
    2,510.46x = 3,761.87 × 1,988.28
  4. Step 4: Simplify right side
    2,510.46x = 7,479,622.13
  5. Step 5: Solve for x
    x = 7,479,622.13/2,510.46
  6. Step 6: Final answer
    x = 2,979.39

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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.