Home / 5,100.30-7,038.36-2,862.17

Finding the Fourth Proportional to 5,100.30, 7,038.36 and 2,862.17

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Solution

The fourth proportional to 5,100.30, 7,038.36 and 2,862.17 is: 3,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.30 : 7,038.36 = 2,862.17 : x
  2. Step 2: Convert to fraction form
    5,100.30/7,038.36 = 2,862.17/x
  3. Step 3: Cross multiply
    5,100.30x = 7,038.36 × 2,862.17
  4. Step 4: Simplify right side
    5,100.30x = 20,144,982.84
  5. Step 5: Solve for x
    x = 20,144,982.84/5,100.30
  6. Step 6: Final answer
    x = 3,949.76

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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.