Home / 2,781.54-4,165.43-1,854.29

Finding the Fourth Proportional to 2,781.54, 4,165.43 and 1,854.29

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Solution

The fourth proportional to 2,781.54, 4,165.43 and 1,854.29 is: 2,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.54 : 4,165.43 = 1,854.29 : x
  2. Step 2: Convert to fraction form
    2,781.54/4,165.43 = 1,854.29/x
  3. Step 3: Cross multiply
    2,781.54x = 4,165.43 × 1,854.29
  4. Step 4: Simplify right side
    2,781.54x = 7,723,916.34
  5. Step 5: Solve for x
    x = 7,723,916.34/2,781.54
  6. Step 6: Final answer
    x = 2,776.85

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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.