Home / 7,511.80-11,251.28-3,807.67

Finding the Fourth Proportional to 7,511.80, 11,251.28 and 3,807.67

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Solution

The fourth proportional to 7,511.80, 11,251.28 and 3,807.67 is: 5,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.80 : 11,251.28 = 3,807.67 : x
  2. Step 2: Convert to fraction form
    7,511.80/11,251.28 = 3,807.67/x
  3. Step 3: Cross multiply
    7,511.80x = 11,251.28 × 3,807.67
  4. Step 4: Simplify right side
    7,511.80x = 42,841,142.28
  5. Step 5: Solve for x
    x = 42,841,142.28/7,511.80
  6. Step 6: Final answer
    x = 5,703.18

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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.