Home / 5,285.68-7,922.79-3,438.11

Finding the Fourth Proportional to 5,285.68, 7,922.79 and 3,438.11

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Solution

The fourth proportional to 5,285.68, 7,922.79 and 3,438.11 is: 5,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.68 : 7,922.79 = 3,438.11 : x
  2. Step 2: Convert to fraction form
    5,285.68/7,922.79 = 3,438.11/x
  3. Step 3: Cross multiply
    5,285.68x = 7,922.79 × 3,438.11
  4. Step 4: Simplify right side
    5,285.68x = 27,239,423.53
  5. Step 5: Solve for x
    x = 27,239,423.53/5,285.68
  6. Step 6: Final answer
    x = 5,153.44

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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.