Home / 2,718.80-4,087.20-2,362.40

Finding the Fourth Proportional to 2,718.80, 4,087.20 and 2,362.40

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Solution

The fourth proportional to 2,718.80, 4,087.20 and 2,362.40 is: 3,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.80 : 4,087.20 = 2,362.40 : x
  2. Step 2: Convert to fraction form
    2,718.80/4,087.20 = 2,362.40/x
  3. Step 3: Cross multiply
    2,718.80x = 4,087.20 × 2,362.40
  4. Step 4: Simplify right side
    2,718.80x = 9,655,601.28
  5. Step 5: Solve for x
    x = 9,655,601.28/2,718.80
  6. Step 6: Final answer
    x = 3,551.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.