Home / 2,718.39-3,751.38-1,539.42

Finding the Fourth Proportional to 2,718.39, 3,751.38 and 1,539.42

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Solution

The fourth proportional to 2,718.39, 3,751.38 and 1,539.42 is: 2,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.39 : 3,751.38 = 1,539.42 : x
  2. Step 2: Convert to fraction form
    2,718.39/3,751.38 = 1,539.42/x
  3. Step 3: Cross multiply
    2,718.39x = 3,751.38 × 1,539.42
  4. Step 4: Simplify right side
    2,718.39x = 5,774,949.40
  5. Step 5: Solve for x
    x = 5,774,949.40/2,718.39
  6. Step 6: Final answer
    x = 2,124.40

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1.5x scale

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.