Home / 6,278.36-9,422.40-3,359.12

Finding the Fourth Proportional to 6,278.36, 9,422.40 and 3,359.12

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Solution

The fourth proportional to 6,278.36, 9,422.40 and 3,359.12 is: 5,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.36 : 9,422.40 = 3,359.12 : x
  2. Step 2: Convert to fraction form
    6,278.36/9,422.40 = 3,359.12/x
  3. Step 3: Cross multiply
    6,278.36x = 9,422.40 × 3,359.12
  4. Step 4: Simplify right side
    6,278.36x = 31,650,972.29
  5. Step 5: Solve for x
    x = 31,650,972.29/6,278.36
  6. Step 6: Final answer
    x = 5,041.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.