Home / 5,112.34-7,057.40-3,853.90

Finding the Fourth Proportional to 5,112.34, 7,057.40 and 3,853.90

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Solution

The fourth proportional to 5,112.34, 7,057.40 and 3,853.90 is: 5,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.34 : 7,057.40 = 3,853.90 : x
  2. Step 2: Convert to fraction form
    5,112.34/7,057.40 = 3,853.90/x
  3. Step 3: Cross multiply
    5,112.34x = 7,057.40 × 3,853.90
  4. Step 4: Simplify right side
    5,112.34x = 27,198,555.78
  5. Step 5: Solve for x
    x = 27,198,555.78/5,112.34
  6. Step 6: Final answer
    x = 5,320.18

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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.