Home / 2,176.38-3,002.18-1,292.02

Finding the Fourth Proportional to 2,176.38, 3,002.18 and 1,292.02

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Solution

The fourth proportional to 2,176.38, 3,002.18 and 1,292.02 is: 1,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.38 : 3,002.18 = 1,292.02 : x
  2. Step 2: Convert to fraction form
    2,176.38/3,002.18 = 1,292.02/x
  3. Step 3: Cross multiply
    2,176.38x = 3,002.18 × 1,292.02
  4. Step 4: Simplify right side
    2,176.38x = 3,878,876.60
  5. Step 5: Solve for x
    x = 3,878,876.60/2,176.38
  6. Step 6: Final answer
    x = 1,782.26

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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.