Home / 5,105.02-7,045.29-2,867.11

Finding the Fourth Proportional to 5,105.02, 7,045.29 and 2,867.11

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Solution

The fourth proportional to 5,105.02, 7,045.29 and 2,867.11 is: 3,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.02 : 7,045.29 = 2,867.11 : x
  2. Step 2: Convert to fraction form
    5,105.02/7,045.29 = 2,867.11/x
  3. Step 3: Cross multiply
    5,105.02x = 7,045.29 × 2,867.11
  4. Step 4: Simplify right side
    5,105.02x = 20,199,621.41
  5. Step 5: Solve for x
    x = 20,199,621.41/5,105.02
  6. Step 6: Final answer
    x = 3,956.82

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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.