Home / 5,358.45-7,392.87-3,119.85

Finding the Fourth Proportional to 5,358.45, 7,392.87 and 3,119.85

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Solution

The fourth proportional to 5,358.45, 7,392.87 and 3,119.85 is: 4,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.45 : 7,392.87 = 3,119.85 : x
  2. Step 2: Convert to fraction form
    5,358.45/7,392.87 = 3,119.85/x
  3. Step 3: Cross multiply
    5,358.45x = 7,392.87 × 3,119.85
  4. Step 4: Simplify right side
    5,358.45x = 23,064,645.47
  5. Step 5: Solve for x
    x = 23,064,645.47/5,358.45
  6. Step 6: Final answer
    x = 4,304.35

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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.