Home / 3,877.47-5,351.75-2,551.29

Finding the Fourth Proportional to 3,877.47, 5,351.75 and 2,551.29

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Solution

The fourth proportional to 3,877.47, 5,351.75 and 2,551.29 is: 3,521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.47 : 5,351.75 = 2,551.29 : x
  2. Step 2: Convert to fraction form
    3,877.47/5,351.75 = 2,551.29/x
  3. Step 3: Cross multiply
    3,877.47x = 5,351.75 × 2,551.29
  4. Step 4: Simplify right side
    3,877.47x = 13,653,853.50
  5. Step 5: Solve for x
    x = 13,653,853.50/3,877.47
  6. Step 6: Final answer
    x = 3,521.33

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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.