Home / 5,420.46-7,480.14-3,825.42

Finding the Fourth Proportional to 5,420.46, 7,480.14 and 3,825.42

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Solution

The fourth proportional to 5,420.46, 7,480.14 and 3,825.42 is: 5,279.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.46 : 7,480.14 = 3,825.42 : x
  2. Step 2: Convert to fraction form
    5,420.46/7,480.14 = 3,825.42/x
  3. Step 3: Cross multiply
    5,420.46x = 7,480.14 × 3,825.42
  4. Step 4: Simplify right side
    5,420.46x = 28,614,677.16
  5. Step 5: Solve for x
    x = 28,614,677.16/5,420.46
  6. Step 6: Final answer
    x = 5,279.01

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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.