Home / 2,784.24-4,175.88-1,139.76

Finding the Fourth Proportional to 2,784.24, 4,175.88 and 1,139.76

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Solution

The fourth proportional to 2,784.24, 4,175.88 and 1,139.76 is: 1,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.24 : 4,175.88 = 1,139.76 : x
  2. Step 2: Convert to fraction form
    2,784.24/4,175.88 = 1,139.76/x
  3. Step 3: Cross multiply
    2,784.24x = 4,175.88 × 1,139.76
  4. Step 4: Simplify right side
    2,784.24x = 4,759,500.99
  5. Step 5: Solve for x
    x = 4,759,500.99/2,784.24
  6. Step 6: Final answer
    x = 1,709.44

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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.