Home / 5,681.20-8,521.04-2,218

Finding the Fourth Proportional to 5,681.20, 8,521.04 and 2,218

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Solution

The fourth proportional to 5,681.20, 8,521.04 and 2,218 is: 3,326.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.20 : 8,521.04 = 2,218 : x
  2. Step 2: Convert to fraction form
    5,681.20/8,521.04 = 2,218/x
  3. Step 3: Cross multiply
    5,681.20x = 8,521.04 × 2,218
  4. Step 4: Simplify right side
    5,681.20x = 18,899,666.72
  5. Step 5: Solve for x
    x = 18,899,666.72/5,681.20
  6. Step 6: Final answer
    x = 3,326.70

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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.