Home / 2,882.18-3,977.46-1,640.18

Finding the Fourth Proportional to 2,882.18, 3,977.46 and 1,640.18

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Solution

The fourth proportional to 2,882.18, 3,977.46 and 1,640.18 is: 2,263.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.18 : 3,977.46 = 1,640.18 : x
  2. Step 2: Convert to fraction form
    2,882.18/3,977.46 = 1,640.18/x
  3. Step 3: Cross multiply
    2,882.18x = 3,977.46 × 1,640.18
  4. Step 4: Simplify right side
    2,882.18x = 6,523,750.34
  5. Step 5: Solve for x
    x = 6,523,750.34/2,882.18
  6. Step 6: Final answer
    x = 2,263.48

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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.