Home / 6,681.28-9,220.20-3,656.47

Finding the Fourth Proportional to 6,681.28, 9,220.20 and 3,656.47

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Solution

The fourth proportional to 6,681.28, 9,220.20 and 3,656.47 is: 5,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.28 : 9,220.20 = 3,656.47 : x
  2. Step 2: Convert to fraction form
    6,681.28/9,220.20 = 3,656.47/x
  3. Step 3: Cross multiply
    6,681.28x = 9,220.20 × 3,656.47
  4. Step 4: Simplify right side
    6,681.28x = 33,713,384.69
  5. Step 5: Solve for x
    x = 33,713,384.69/6,681.28
  6. Step 6: Final answer
    x = 5,045.95

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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.