Home / 3,135.67-4,326.08-1,876.76

Finding the Fourth Proportional to 3,135.67, 4,326.08 and 1,876.76

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Solution

The fourth proportional to 3,135.67, 4,326.08 and 1,876.76 is: 2,589.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.67 : 4,326.08 = 1,876.76 : x
  2. Step 2: Convert to fraction form
    3,135.67/4,326.08 = 1,876.76/x
  3. Step 3: Cross multiply
    3,135.67x = 4,326.08 × 1,876.76
  4. Step 4: Simplify right side
    3,135.67x = 8,119,013.90
  5. Step 5: Solve for x
    x = 8,119,013.90/3,135.67
  6. Step 6: Final answer
    x = 2,589.24

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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.