Home / 5,154.44-7,112.51-2,885.90

Finding the Fourth Proportional to 5,154.44, 7,112.51 and 2,885.90

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Solution

The fourth proportional to 5,154.44, 7,112.51 and 2,885.90 is: 3,982.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.44 : 7,112.51 = 2,885.90 : x
  2. Step 2: Convert to fraction form
    5,154.44/7,112.51 = 2,885.90/x
  3. Step 3: Cross multiply
    5,154.44x = 7,112.51 × 2,885.90
  4. Step 4: Simplify right side
    5,154.44x = 20,525,964.26
  5. Step 5: Solve for x
    x = 20,525,964.26/5,154.44
  6. Step 6: Final answer
    x = 3,982.19

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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.