Home / 5,491.90-8,230.65-4,872.70

Finding the Fourth Proportional to 5,491.90, 8,230.65 and 4,872.70

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Solution

The fourth proportional to 5,491.90, 8,230.65 and 4,872.70 is: 7,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.90 : 8,230.65 = 4,872.70 : x
  2. Step 2: Convert to fraction form
    5,491.90/8,230.65 = 4,872.70/x
  3. Step 3: Cross multiply
    5,491.90x = 8,230.65 × 4,872.70
  4. Step 4: Simplify right side
    5,491.90x = 40,105,488.26
  5. Step 5: Solve for x
    x = 40,105,488.26/5,491.90
  6. Step 6: Final answer
    x = 7,302.66

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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.