Home / 3,579.61-4,939.91-2,681.76

Finding the Fourth Proportional to 3,579.61, 4,939.91 and 2,681.76

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Solution

The fourth proportional to 3,579.61, 4,939.91 and 2,681.76 is: 3,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.61 : 4,939.91 = 2,681.76 : x
  2. Step 2: Convert to fraction form
    3,579.61/4,939.91 = 2,681.76/x
  3. Step 3: Cross multiply
    3,579.61x = 4,939.91 × 2,681.76
  4. Step 4: Simplify right side
    3,579.61x = 13,247,653.04
  5. Step 5: Solve for x
    x = 13,247,653.04/3,579.61
  6. Step 6: Final answer
    x = 3,700.86

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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.