Home / 5,378.38-7,422.77-3,020.06

Finding the Fourth Proportional to 5,378.38, 7,422.77 and 3,020.06

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Solution

The fourth proportional to 5,378.38, 7,422.77 and 3,020.06 is: 4,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.38 : 7,422.77 = 3,020.06 : x
  2. Step 2: Convert to fraction form
    5,378.38/7,422.77 = 3,020.06/x
  3. Step 3: Cross multiply
    5,378.38x = 7,422.77 × 3,020.06
  4. Step 4: Simplify right side
    5,378.38x = 22,417,210.77
  5. Step 5: Solve for x
    x = 22,417,210.77/5,378.38
  6. Step 6: Final answer
    x = 4,168.02

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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.