Home / 5,378.34-7,422.08-3,020.48

Finding the Fourth Proportional to 5,378.34, 7,422.08 and 3,020.48

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Solution

The fourth proportional to 5,378.34, 7,422.08 and 3,020.48 is: 4,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.34 : 7,422.08 = 3,020.48 : x
  2. Step 2: Convert to fraction form
    5,378.34/7,422.08 = 3,020.48/x
  3. Step 3: Cross multiply
    5,378.34x = 7,422.08 × 3,020.48
  4. Step 4: Simplify right side
    5,378.34x = 22,418,244.20
  5. Step 5: Solve for x
    x = 22,418,244.20/5,378.34
  6. Step 6: Final answer
    x = 4,168.25

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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.