Home / 3,718.13-5,130.84-2,103

Finding the Fourth Proportional to 3,718.13, 5,130.84 and 2,103

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Solution

The fourth proportional to 3,718.13, 5,130.84 and 2,103 is: 2,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.13 : 5,130.84 = 2,103 : x
  2. Step 2: Convert to fraction form
    3,718.13/5,130.84 = 2,103/x
  3. Step 3: Cross multiply
    3,718.13x = 5,130.84 × 2,103
  4. Step 4: Simplify right side
    3,718.13x = 10,790,156.52
  5. Step 5: Solve for x
    x = 10,790,156.52/3,718.13
  6. Step 6: Final answer
    x = 2,902.04

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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.