Home / 5,820-8,031.74-3,167.55

Finding the Fourth Proportional to 5,820, 8,031.74 and 3,167.55

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Solution

The fourth proportional to 5,820, 8,031.74 and 3,167.55 is: 4,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820 : 8,031.74 = 3,167.55 : x
  2. Step 2: Convert to fraction form
    5,820/8,031.74 = 3,167.55/x
  3. Step 3: Cross multiply
    5,820x = 8,031.74 × 3,167.55
  4. Step 4: Simplify right side
    5,820x = 25,440,938.04
  5. Step 5: Solve for x
    x = 25,440,938.04/5,820
  6. Step 6: Final answer
    x = 4,371.30

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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.