Home / 5,083.68-7,016.31-2,987.40

Finding the Fourth Proportional to 5,083.68, 7,016.31 and 2,987.40

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Solution

The fourth proportional to 5,083.68, 7,016.31 and 2,987.40 is: 4,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.68 : 7,016.31 = 2,987.40 : x
  2. Step 2: Convert to fraction form
    5,083.68/7,016.31 = 2,987.40/x
  3. Step 3: Cross multiply
    5,083.68x = 7,016.31 × 2,987.40
  4. Step 4: Simplify right side
    5,083.68x = 20,960,524.49
  5. Step 5: Solve for x
    x = 20,960,524.49/5,083.68
  6. Step 6: Final answer
    x = 4,123.10

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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.