Home / 6,780.62-9,350.68-5,287.99

Finding the Fourth Proportional to 6,780.62, 9,350.68 and 5,287.99

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Solution

The fourth proportional to 6,780.62, 9,350.68 and 5,287.99 is: 7,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.62 : 9,350.68 = 5,287.99 : x
  2. Step 2: Convert to fraction form
    6,780.62/9,350.68 = 5,287.99/x
  3. Step 3: Cross multiply
    6,780.62x = 9,350.68 × 5,287.99
  4. Step 4: Simplify right side
    6,780.62x = 49,446,302.33
  5. Step 5: Solve for x
    x = 49,446,302.33/6,780.62
  6. Step 6: Final answer
    x = 7,292.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.