Home / 2,763.78-4,143.62-1,302.12

Finding the Fourth Proportional to 2,763.78, 4,143.62 and 1,302.12

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Solution

The fourth proportional to 2,763.78, 4,143.62 and 1,302.12 is: 1,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.78 : 4,143.62 = 1,302.12 : x
  2. Step 2: Convert to fraction form
    2,763.78/4,143.62 = 1,302.12/x
  3. Step 3: Cross multiply
    2,763.78x = 4,143.62 × 1,302.12
  4. Step 4: Simplify right side
    2,763.78x = 5,395,490.47
  5. Step 5: Solve for x
    x = 5,395,490.47/2,763.78
  6. Step 6: Final answer
    x = 1,952.21

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1.5x scale

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.