Home / 6,681.28-9,214.32-4,321.12

Finding the Fourth Proportional to 6,681.28, 9,214.32 and 4,321.12

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Solution

The fourth proportional to 6,681.28, 9,214.32 and 4,321.12 is: 5,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.28 : 9,214.32 = 4,321.12 : x
  2. Step 2: Convert to fraction form
    6,681.28/9,214.32 = 4,321.12/x
  3. Step 3: Cross multiply
    6,681.28x = 9,214.32 × 4,321.12
  4. Step 4: Simplify right side
    6,681.28x = 39,816,182.44
  5. Step 5: Solve for x
    x = 39,816,182.44/6,681.28
  6. Step 6: Final answer
    x = 5,959.36

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Double scale
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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.