Home / 3,126.72-4,690.96-1,348.40

Finding the Fourth Proportional to 3,126.72, 4,690.96 and 1,348.40

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Solution

The fourth proportional to 3,126.72, 4,690.96 and 1,348.40 is: 2,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.72 : 4,690.96 = 1,348.40 : x
  2. Step 2: Convert to fraction form
    3,126.72/4,690.96 = 1,348.40/x
  3. Step 3: Cross multiply
    3,126.72x = 4,690.96 × 1,348.40
  4. Step 4: Simplify right side
    3,126.72x = 6,325,290.46
  5. Step 5: Solve for x
    x = 6,325,290.46/3,126.72
  6. Step 6: Final answer
    x = 2,022.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.