Home / 2,784.24-4,177.26-1,139.88

Finding the Fourth Proportional to 2,784.24, 4,177.26 and 1,139.88

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Solution

The fourth proportional to 2,784.24, 4,177.26 and 1,139.88 is: 1,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.24 : 4,177.26 = 1,139.88 : x
  2. Step 2: Convert to fraction form
    2,784.24/4,177.26 = 1,139.88/x
  3. Step 3: Cross multiply
    2,784.24x = 4,177.26 × 1,139.88
  4. Step 4: Simplify right side
    2,784.24x = 4,761,590.79
  5. Step 5: Solve for x
    x = 4,761,590.79/2,784.24
  6. Step 6: Final answer
    x = 1,710.19

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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.