Home / 1,990.32-2,742.76-1,493.52

Finding the Fourth Proportional to 1,990.32, 2,742.76 and 1,493.52

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Solution

The fourth proportional to 1,990.32, 2,742.76 and 1,493.52 is: 2,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.32 : 2,742.76 = 1,493.52 : x
  2. Step 2: Convert to fraction form
    1,990.32/2,742.76 = 1,493.52/x
  3. Step 3: Cross multiply
    1,990.32x = 2,742.76 × 1,493.52
  4. Step 4: Simplify right side
    1,990.32x = 4,096,366.92
  5. Step 5: Solve for x
    x = 4,096,366.92/1,990.32
  6. Step 6: Final answer
    x = 2,058.14

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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.