Home / 2,391.24-3,587.13-1,157.76

Finding the Fourth Proportional to 2,391.24, 3,587.13 and 1,157.76

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Solution

The fourth proportional to 2,391.24, 3,587.13 and 1,157.76 is: 1,736.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.24 : 3,587.13 = 1,157.76 : x
  2. Step 2: Convert to fraction form
    2,391.24/3,587.13 = 1,157.76/x
  3. Step 3: Cross multiply
    2,391.24x = 3,587.13 × 1,157.76
  4. Step 4: Simplify right side
    2,391.24x = 4,153,022.12
  5. Step 5: Solve for x
    x = 4,153,022.12/2,391.24
  6. Step 6: Final answer
    x = 1,736.77

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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.