Home / 3,876.10-5,348.75-2,303.90

Finding the Fourth Proportional to 3,876.10, 5,348.75 and 2,303.90

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Solution

The fourth proportional to 3,876.10, 5,348.75 and 2,303.90 is: 3,179.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.10 : 5,348.75 = 2,303.90 : x
  2. Step 2: Convert to fraction form
    3,876.10/5,348.75 = 2,303.90/x
  3. Step 3: Cross multiply
    3,876.10x = 5,348.75 × 2,303.90
  4. Step 4: Simplify right side
    3,876.10x = 12,322,985.13
  5. Step 5: Solve for x
    x = 12,322,985.13/3,876.10
  6. Step 6: Final answer
    x = 3,179.22

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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.