Home / 2,160.92-3,240.16-927.56

Finding the Fourth Proportional to 2,160.92, 3,240.16 and 927.56

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Solution

The fourth proportional to 2,160.92, 3,240.16 and 927.56 is: 1,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.92 : 3,240.16 = 927.56 : x
  2. Step 2: Convert to fraction form
    2,160.92/3,240.16 = 927.56/x
  3. Step 3: Cross multiply
    2,160.92x = 3,240.16 × 927.56
  4. Step 4: Simplify right side
    2,160.92x = 3,005,442.81
  5. Step 5: Solve for x
    x = 3,005,442.81/2,160.92
  6. Step 6: Final answer
    x = 1,390.82

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1.5x scale

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.