Home / 5,357.20-7,392.72-3,119.14

Finding the Fourth Proportional to 5,357.20, 7,392.72 and 3,119.14

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Solution

The fourth proportional to 5,357.20, 7,392.72 and 3,119.14 is: 4,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.20 : 7,392.72 = 3,119.14 : x
  2. Step 2: Convert to fraction form
    5,357.20/7,392.72 = 3,119.14/x
  3. Step 3: Cross multiply
    5,357.20x = 7,392.72 × 3,119.14
  4. Step 4: Simplify right side
    5,357.20x = 23,058,928.66
  5. Step 5: Solve for x
    x = 23,058,928.66/5,357.20
  6. Step 6: Final answer
    x = 4,304.29

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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.