Home / 2,991.29-4,479.96-2,887.47

Finding the Fourth Proportional to 2,991.29, 4,479.96 and 2,887.47

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Solution

The fourth proportional to 2,991.29, 4,479.96 and 2,887.47 is: 4,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.29 : 4,479.96 = 2,887.47 : x
  2. Step 2: Convert to fraction form
    2,991.29/4,479.96 = 2,887.47/x
  3. Step 3: Cross multiply
    2,991.29x = 4,479.96 × 2,887.47
  4. Step 4: Simplify right side
    2,991.29x = 12,935,750.10
  5. Step 5: Solve for x
    x = 12,935,750.10/2,991.29
  6. Step 6: Final answer
    x = 4,324.48

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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.