Home / 2,780.48-4,171.84-1,049.24

Finding the Fourth Proportional to 2,780.48, 4,171.84 and 1,049.24

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Solution

The fourth proportional to 2,780.48, 4,171.84 and 1,049.24 is: 1,574.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.48 : 4,171.84 = 1,049.24 : x
  2. Step 2: Convert to fraction form
    2,780.48/4,171.84 = 1,049.24/x
  3. Step 3: Cross multiply
    2,780.48x = 4,171.84 × 1,049.24
  4. Step 4: Simplify right side
    2,780.48x = 4,377,261.40
  5. Step 5: Solve for x
    x = 4,377,261.40/2,780.48
  6. Step 6: Final answer
    x = 1,574.28

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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.