Home / 6,868.28-9,478.23-3,724.47

Finding the Fourth Proportional to 6,868.28, 9,478.23 and 3,724.47

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Solution

The fourth proportional to 6,868.28, 9,478.23 and 3,724.47 is: 5,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.28 : 9,478.23 = 3,724.47 : x
  2. Step 2: Convert to fraction form
    6,868.28/9,478.23 = 3,724.47/x
  3. Step 3: Cross multiply
    6,868.28x = 9,478.23 × 3,724.47
  4. Step 4: Simplify right side
    6,868.28x = 35,301,347.74
  5. Step 5: Solve for x
    x = 35,301,347.74/6,868.28
  6. Step 6: Final answer
    x = 5,139.77

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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.