Home / 1,938.13-2,674.18-1,098.76

Finding the Fourth Proportional to 1,938.13, 2,674.18 and 1,098.76

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Solution

The fourth proportional to 1,938.13, 2,674.18 and 1,098.76 is: 1,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.13 : 2,674.18 = 1,098.76 : x
  2. Step 2: Convert to fraction form
    1,938.13/2,674.18 = 1,098.76/x
  3. Step 3: Cross multiply
    1,938.13x = 2,674.18 × 1,098.76
  4. Step 4: Simplify right side
    1,938.13x = 2,938,282.02
  5. Step 5: Solve for x
    x = 2,938,282.02/1,938.13
  6. Step 6: Final answer
    x = 1,516.04

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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.