Home / 2,195.28-3,032.76-1,440.84

Finding the Fourth Proportional to 2,195.28, 3,032.76 and 1,440.84

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Solution

The fourth proportional to 2,195.28, 3,032.76 and 1,440.84 is: 1,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.28 : 3,032.76 = 1,440.84 : x
  2. Step 2: Convert to fraction form
    2,195.28/3,032.76 = 1,440.84/x
  3. Step 3: Cross multiply
    2,195.28x = 3,032.76 × 1,440.84
  4. Step 4: Simplify right side
    2,195.28x = 4,369,721.92
  5. Step 5: Solve for x
    x = 4,369,721.92/2,195.28
  6. Step 6: Final answer
    x = 1,990.51

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Half scale
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Double scale
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1.5x scale

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.