Home / 2,710.80-3,740.87-1,531.83

Finding the Fourth Proportional to 2,710.80, 3,740.87 and 1,531.83

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Solution

The fourth proportional to 2,710.80, 3,740.87 and 1,531.83 is: 2,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.80 : 3,740.87 = 1,531.83 : x
  2. Step 2: Convert to fraction form
    2,710.80/3,740.87 = 1,531.83/x
  3. Step 3: Cross multiply
    2,710.80x = 3,740.87 × 1,531.83
  4. Step 4: Simplify right side
    2,710.80x = 5,730,369.23
  5. Step 5: Solve for x
    x = 5,730,369.23/2,710.80
  6. Step 6: Final answer
    x = 2,113.90

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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.