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Finding the Fourth Proportional to 2,585.34, 3,878.08 and 943.11

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Solution

The fourth proportional to 2,585.34, 3,878.08 and 943.11 is: 1,414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.34 : 3,878.08 = 943.11 : x
  2. Step 2: Convert to fraction form
    2,585.34/3,878.08 = 943.11/x
  3. Step 3: Cross multiply
    2,585.34x = 3,878.08 × 943.11
  4. Step 4: Simplify right side
    2,585.34x = 3,657,451.31
  5. Step 5: Solve for x
    x = 3,657,451.31/2,585.34
  6. Step 6: Final answer
    x = 1,414.69

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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.