Home / 5,428.66-8,138.19-2,348.98

Finding the Fourth Proportional to 5,428.66, 8,138.19 and 2,348.98

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Solution

The fourth proportional to 5,428.66, 8,138.19 and 2,348.98 is: 3,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.66 : 8,138.19 = 2,348.98 : x
  2. Step 2: Convert to fraction form
    5,428.66/8,138.19 = 2,348.98/x
  3. Step 3: Cross multiply
    5,428.66x = 8,138.19 × 2,348.98
  4. Step 4: Simplify right side
    5,428.66x = 19,116,445.55
  5. Step 5: Solve for x
    x = 19,116,445.55/5,428.66
  6. Step 6: Final answer
    x = 3,521.39

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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.