Home / 4,987.08-6,881.16-3,123

Finding the Fourth Proportional to 4,987.08, 6,881.16 and 3,123

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Solution

The fourth proportional to 4,987.08, 6,881.16 and 3,123 is: 4,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.08 : 6,881.16 = 3,123 : x
  2. Step 2: Convert to fraction form
    4,987.08/6,881.16 = 3,123/x
  3. Step 3: Cross multiply
    4,987.08x = 6,881.16 × 3,123
  4. Step 4: Simplify right side
    4,987.08x = 21,489,862.68
  5. Step 5: Solve for x
    x = 21,489,862.68/4,987.08
  6. Step 6: Final answer
    x = 4,309.11

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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.