Home / 5,100.19-7,038.15-2,862.05

Finding the Fourth Proportional to 5,100.19, 7,038.15 and 2,862.05

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Solution

The fourth proportional to 5,100.19, 7,038.15 and 2,862.05 is: 3,949.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.19 : 7,038.15 = 2,862.05 : x
  2. Step 2: Convert to fraction form
    5,100.19/7,038.15 = 2,862.05/x
  3. Step 3: Cross multiply
    5,100.19x = 7,038.15 × 2,862.05
  4. Step 4: Simplify right side
    5,100.19x = 20,143,537.21
  5. Step 5: Solve for x
    x = 20,143,537.21/5,100.19
  6. Step 6: Final answer
    x = 3,949.57

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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.