Home / 2,718.15-3,751.19-1,539.20

Finding the Fourth Proportional to 2,718.15, 3,751.19 and 1,539.20

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Solution

The fourth proportional to 2,718.15, 3,751.19 and 1,539.20 is: 2,124.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.15 : 3,751.19 = 1,539.20 : x
  2. Step 2: Convert to fraction form
    2,718.15/3,751.19 = 1,539.20/x
  3. Step 3: Cross multiply
    2,718.15x = 3,751.19 × 1,539.20
  4. Step 4: Simplify right side
    2,718.15x = 5,773,805.20
  5. Step 5: Solve for x
    x = 5,773,805.20/2,718.15
  6. Step 6: Final answer
    x = 2,124.17

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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.