Home / 5,424.06-8,139.14-5,382.75

Finding the Fourth Proportional to 5,424.06, 8,139.14 and 5,382.75

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Solution

The fourth proportional to 5,424.06, 8,139.14 and 5,382.75 is: 8,077.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.06 : 8,139.14 = 5,382.75 : x
  2. Step 2: Convert to fraction form
    5,424.06/8,139.14 = 5,382.75/x
  3. Step 3: Cross multiply
    5,424.06x = 8,139.14 × 5,382.75
  4. Step 4: Simplify right side
    5,424.06x = 43,810,955.84
  5. Step 5: Solve for x
    x = 43,810,955.84/5,424.06
  6. Step 6: Final answer
    x = 8,077.15

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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.