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Finding the Fourth Proportional to 4,986.02, 6,876.63 and 3,640.14

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Solution

The fourth proportional to 4,986.02, 6,876.63 and 3,640.14 is: 5,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.02 : 6,876.63 = 3,640.14 : x
  2. Step 2: Convert to fraction form
    4,986.02/6,876.63 = 3,640.14/x
  3. Step 3: Cross multiply
    4,986.02x = 6,876.63 × 3,640.14
  4. Step 4: Simplify right side
    4,986.02x = 25,031,895.93
  5. Step 5: Solve for x
    x = 25,031,895.93/4,986.02
  6. Step 6: Final answer
    x = 5,020.41

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1.5x scale

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.