Home / 2,888.10-3,982.20-2,732.40

Finding the Fourth Proportional to 2,888.10, 3,982.20 and 2,732.40

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Solution

The fourth proportional to 2,888.10, 3,982.20 and 2,732.40 is: 3,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.10 : 3,982.20 = 2,732.40 : x
  2. Step 2: Convert to fraction form
    2,888.10/3,982.20 = 2,732.40/x
  3. Step 3: Cross multiply
    2,888.10x = 3,982.20 × 2,732.40
  4. Step 4: Simplify right side
    2,888.10x = 10,880,963.28
  5. Step 5: Solve for x
    x = 10,880,963.28/2,888.10
  6. Step 6: Final answer
    x = 3,767.52

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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.