Home / 5,475.67-8,213.10-1,965.40

Finding the Fourth Proportional to 5,475.67, 8,213.10 and 1,965.40

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Solution

The fourth proportional to 5,475.67, 8,213.10 and 1,965.40 is: 2,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.67 : 8,213.10 = 1,965.40 : x
  2. Step 2: Convert to fraction form
    5,475.67/8,213.10 = 1,965.40/x
  3. Step 3: Cross multiply
    5,475.67x = 8,213.10 × 1,965.40
  4. Step 4: Simplify right side
    5,475.67x = 16,142,026.74
  5. Step 5: Solve for x
    x = 16,142,026.74/5,475.67
  6. Step 6: Final answer
    x = 2,947.95

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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.