Home / 2,808.39-3,875.60-1,549.49

Finding the Fourth Proportional to 2,808.39, 3,875.60 and 1,549.49

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Solution

The fourth proportional to 2,808.39, 3,875.60 and 1,549.49 is: 2,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.39 : 3,875.60 = 1,549.49 : x
  2. Step 2: Convert to fraction form
    2,808.39/3,875.60 = 1,549.49/x
  3. Step 3: Cross multiply
    2,808.39x = 3,875.60 × 1,549.49
  4. Step 4: Simplify right side
    2,808.39x = 6,005,195.70
  5. Step 5: Solve for x
    x = 6,005,195.70/2,808.39
  6. Step 6: Final answer
    x = 2,138.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.