Home / 2,869.80-4,304.70-2,760.45

Finding the Fourth Proportional to 2,869.80, 4,304.70 and 2,760.45

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Solution

The fourth proportional to 2,869.80, 4,304.70 and 2,760.45 is: 4,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.80 : 4,304.70 = 2,760.45 : x
  2. Step 2: Convert to fraction form
    2,869.80/4,304.70 = 2,760.45/x
  3. Step 3: Cross multiply
    2,869.80x = 4,304.70 × 2,760.45
  4. Step 4: Simplify right side
    2,869.80x = 11,882,909.12
  5. Step 5: Solve for x
    x = 11,882,909.12/2,869.80
  6. Step 6: Final answer
    x = 4,140.68

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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.