Home / 4,309.72-6,461.70-2,115.52

Finding the Fourth Proportional to 4,309.72, 6,461.70 and 2,115.52

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Solution

The fourth proportional to 4,309.72, 6,461.70 and 2,115.52 is: 3,171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.72 : 6,461.70 = 2,115.52 : x
  2. Step 2: Convert to fraction form
    4,309.72/6,461.70 = 2,115.52/x
  3. Step 3: Cross multiply
    4,309.72x = 6,461.70 × 2,115.52
  4. Step 4: Simplify right side
    4,309.72x = 13,669,855.58
  5. Step 5: Solve for x
    x = 13,669,855.58/4,309.72
  6. Step 6: Final answer
    x = 3,171.87

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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.