Home / 1,935.72-2,671.24-1,149.76

Finding the Fourth Proportional to 1,935.72, 2,671.24 and 1,149.76

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Solution

The fourth proportional to 1,935.72, 2,671.24 and 1,149.76 is: 1,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.72 : 2,671.24 = 1,149.76 : x
  2. Step 2: Convert to fraction form
    1,935.72/2,671.24 = 1,149.76/x
  3. Step 3: Cross multiply
    1,935.72x = 2,671.24 × 1,149.76
  4. Step 4: Simplify right side
    1,935.72x = 3,071,284.90
  5. Step 5: Solve for x
    x = 3,071,284.90/1,935.72
  6. Step 6: Final answer
    x = 1,586.64

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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.