Home / 5,408-8,116.08-2,810.72

Finding the Fourth Proportional to 5,408, 8,116.08 and 2,810.72

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Solution

The fourth proportional to 5,408, 8,116.08 and 2,810.72 is: 4,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408 : 8,116.08 = 2,810.72 : x
  2. Step 2: Convert to fraction form
    5,408/8,116.08 = 2,810.72/x
  3. Step 3: Cross multiply
    5,408x = 8,116.08 × 2,810.72
  4. Step 4: Simplify right side
    5,408x = 22,812,028.38
  5. Step 5: Solve for x
    x = 22,812,028.38/5,408
  6. Step 6: Final answer
    x = 4,218.20

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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.