Home / 5,167.79-7,752.71-2,047.21

Finding the Fourth Proportional to 5,167.79, 7,752.71 and 2,047.21

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Solution

The fourth proportional to 5,167.79, 7,752.71 and 2,047.21 is: 3,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.79 : 7,752.71 = 2,047.21 : x
  2. Step 2: Convert to fraction form
    5,167.79/7,752.71 = 2,047.21/x
  3. Step 3: Cross multiply
    5,167.79x = 7,752.71 × 2,047.21
  4. Step 4: Simplify right side
    5,167.79x = 15,871,425.44
  5. Step 5: Solve for x
    x = 15,871,425.44/5,167.79
  6. Step 6: Final answer
    x = 3,071.22

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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.