Home / 5,174.74-7,138.80-3,049.18

Finding the Fourth Proportional to 5,174.74, 7,138.80 and 3,049.18

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Solution

The fourth proportional to 5,174.74, 7,138.80 and 3,049.18 is: 4,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.74 : 7,138.80 = 3,049.18 : x
  2. Step 2: Convert to fraction form
    5,174.74/7,138.80 = 3,049.18/x
  3. Step 3: Cross multiply
    5,174.74x = 7,138.80 × 3,049.18
  4. Step 4: Simplify right side
    5,174.74x = 21,767,486.18
  5. Step 5: Solve for x
    x = 21,767,486.18/5,174.74
  6. Step 6: Final answer
    x = 4,206.49

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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.