Home / 3,876.05-5,339.90-2,695.07

Finding the Fourth Proportional to 3,876.05, 5,339.90 and 2,695.07

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Solution

The fourth proportional to 3,876.05, 5,339.90 and 2,695.07 is: 3,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.05 : 5,339.90 = 2,695.07 : x
  2. Step 2: Convert to fraction form
    3,876.05/5,339.90 = 2,695.07/x
  3. Step 3: Cross multiply
    3,876.05x = 5,339.90 × 2,695.07
  4. Step 4: Simplify right side
    3,876.05x = 14,391,364.12
  5. Step 5: Solve for x
    x = 14,391,364.12/3,876.05
  6. Step 6: Final answer
    x = 3,712.90

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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.