Home / 2,718.60-3,751.72-1,539.70

Finding the Fourth Proportional to 2,718.60, 3,751.72 and 1,539.70

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Solution

The fourth proportional to 2,718.60, 3,751.72 and 1,539.70 is: 2,124.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.60 : 3,751.72 = 1,539.70 : x
  2. Step 2: Convert to fraction form
    2,718.60/3,751.72 = 1,539.70/x
  3. Step 3: Cross multiply
    2,718.60x = 3,751.72 × 1,539.70
  4. Step 4: Simplify right side
    2,718.60x = 5,776,523.28
  5. Step 5: Solve for x
    x = 5,776,523.28/2,718.60
  6. Step 6: Final answer
    x = 2,124.82

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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.