Home / 1,938.62-2,675.18-1,054.42

Finding the Fourth Proportional to 1,938.62, 2,675.18 and 1,054.42

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Solution

The fourth proportional to 1,938.62, 2,675.18 and 1,054.42 is: 1,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.62 : 2,675.18 = 1,054.42 : x
  2. Step 2: Convert to fraction form
    1,938.62/2,675.18 = 1,054.42/x
  3. Step 3: Cross multiply
    1,938.62x = 2,675.18 × 1,054.42
  4. Step 4: Simplify right side
    1,938.62x = 2,820,765.93
  5. Step 5: Solve for x
    x = 2,820,765.93/1,938.62
  6. Step 6: Final answer
    x = 1,455.04

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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.