Home / 1,938.18-2,677.44-1,544.70

Finding the Fourth Proportional to 1,938.18, 2,677.44 and 1,544.70

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Solution

The fourth proportional to 1,938.18, 2,677.44 and 1,544.70 is: 2,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.18 : 2,677.44 = 1,544.70 : x
  2. Step 2: Convert to fraction form
    1,938.18/2,677.44 = 1,544.70/x
  3. Step 3: Cross multiply
    1,938.18x = 2,677.44 × 1,544.70
  4. Step 4: Simplify right side
    1,938.18x = 4,135,841.57
  5. Step 5: Solve for x
    x = 4,135,841.57/1,938.18
  6. Step 6: Final answer
    x = 2,133.88

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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.