Home / 2,313.66-3,192.90-1,265.76

Finding the Fourth Proportional to 2,313.66, 3,192.90 and 1,265.76

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Solution

The fourth proportional to 2,313.66, 3,192.90 and 1,265.76 is: 1,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.66 : 3,192.90 = 1,265.76 : x
  2. Step 2: Convert to fraction form
    2,313.66/3,192.90 = 1,265.76/x
  3. Step 3: Cross multiply
    2,313.66x = 3,192.90 × 1,265.76
  4. Step 4: Simplify right side
    2,313.66x = 4,041,445.10
  5. Step 5: Solve for x
    x = 4,041,445.10/2,313.66
  6. Step 6: Final answer
    x = 1,746.78

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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.