Home / 7,478.05-11,218.68-3,731.84

Finding the Fourth Proportional to 7,478.05, 11,218.68 and 3,731.84

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Solution

The fourth proportional to 7,478.05, 11,218.68 and 3,731.84 is: 5,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.05 : 11,218.68 = 3,731.84 : x
  2. Step 2: Convert to fraction form
    7,478.05/11,218.68 = 3,731.84/x
  3. Step 3: Cross multiply
    7,478.05x = 11,218.68 × 3,731.84
  4. Step 4: Simplify right side
    7,478.05x = 41,866,318.77
  5. Step 5: Solve for x
    x = 41,866,318.77/7,478.05
  6. Step 6: Final answer
    x = 5,598.56

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1.5x scale

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.