Home / 5,114.76-7,058.32-2,876.64

Finding the Fourth Proportional to 5,114.76, 7,058.32 and 2,876.64

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Solution

The fourth proportional to 5,114.76, 7,058.32 and 2,876.64 is: 3,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.76 : 7,058.32 = 2,876.64 : x
  2. Step 2: Convert to fraction form
    5,114.76/7,058.32 = 2,876.64/x
  3. Step 3: Cross multiply
    5,114.76x = 7,058.32 × 2,876.64
  4. Step 4: Simplify right side
    5,114.76x = 20,304,245.64
  5. Step 5: Solve for x
    x = 20,304,245.64/5,114.76
  6. Step 6: Final answer
    x = 3,969.74

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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.