Home / 1,675.18-2,311.44-1,002.78

Finding the Fourth Proportional to 1,675.18, 2,311.44 and 1,002.78

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Solution

The fourth proportional to 1,675.18, 2,311.44 and 1,002.78 is: 1,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.18 : 2,311.44 = 1,002.78 : x
  2. Step 2: Convert to fraction form
    1,675.18/2,311.44 = 1,002.78/x
  3. Step 3: Cross multiply
    1,675.18x = 2,311.44 × 1,002.78
  4. Step 4: Simplify right side
    1,675.18x = 2,317,862.04
  5. Step 5: Solve for x
    x = 2,317,862.04/1,675.18
  6. Step 6: Final answer
    x = 1,383.65

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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.