Home / 1,927.32-2,659.76-1,171.13

Finding the Fourth Proportional to 1,927.32, 2,659.76 and 1,171.13

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Solution

The fourth proportional to 1,927.32, 2,659.76 and 1,171.13 is: 1,616.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.32 : 2,659.76 = 1,171.13 : x
  2. Step 2: Convert to fraction form
    1,927.32/2,659.76 = 1,171.13/x
  3. Step 3: Cross multiply
    1,927.32x = 2,659.76 × 1,171.13
  4. Step 4: Simplify right side
    1,927.32x = 3,114,905.57
  5. Step 5: Solve for x
    x = 3,114,905.57/1,927.32
  6. Step 6: Final answer
    x = 1,616.18

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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.