Home / 7,540.30-11,315.64-3,384.96

Finding the Fourth Proportional to 7,540.30, 11,315.64 and 3,384.96

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Solution

The fourth proportional to 7,540.30, 11,315.64 and 3,384.96 is: 5,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.30 : 11,315.64 = 3,384.96 : x
  2. Step 2: Convert to fraction form
    7,540.30/11,315.64 = 3,384.96/x
  3. Step 3: Cross multiply
    7,540.30x = 11,315.64 × 3,384.96
  4. Step 4: Simplify right side
    7,540.30x = 38,302,988.77
  5. Step 5: Solve for x
    x = 38,302,988.77/7,540.30
  6. Step 6: Final answer
    x = 5,079.77

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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.