Home / 2,587.57-3,878.98-943.77

Finding the Fourth Proportional to 2,587.57, 3,878.98 and 943.77

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Solution

The fourth proportional to 2,587.57, 3,878.98 and 943.77 is: 1,414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.57 : 3,878.98 = 943.77 : x
  2. Step 2: Convert to fraction form
    2,587.57/3,878.98 = 943.77/x
  3. Step 3: Cross multiply
    2,587.57x = 3,878.98 × 943.77
  4. Step 4: Simplify right side
    2,587.57x = 3,660,864.95
  5. Step 5: Solve for x
    x = 3,660,864.95/2,587.57
  6. Step 6: Final answer
    x = 1,414.79

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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.