Home / 2,775.82-4,160.96-1,543.78

Finding the Fourth Proportional to 2,775.82, 4,160.96 and 1,543.78

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Solution

The fourth proportional to 2,775.82, 4,160.96 and 1,543.78 is: 2,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.82 : 4,160.96 = 1,543.78 : x
  2. Step 2: Convert to fraction form
    2,775.82/4,160.96 = 1,543.78/x
  3. Step 3: Cross multiply
    2,775.82x = 4,160.96 × 1,543.78
  4. Step 4: Simplify right side
    2,775.82x = 6,423,606.83
  5. Step 5: Solve for x
    x = 6,423,606.83/2,775.82
  6. Step 6: Final answer
    x = 2,314.13

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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.