Home / 7,708.20-11,562.27-1,864.80

Finding the Fourth Proportional to 7,708.20, 11,562.27 and 1,864.80

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Solution

The fourth proportional to 7,708.20, 11,562.27 and 1,864.80 is: 2,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.20 : 11,562.27 = 1,864.80 : x
  2. Step 2: Convert to fraction form
    7,708.20/11,562.27 = 1,864.80/x
  3. Step 3: Cross multiply
    7,708.20x = 11,562.27 × 1,864.80
  4. Step 4: Simplify right side
    7,708.20x = 21,561,321.10
  5. Step 5: Solve for x
    x = 21,561,321.10/7,708.20
  6. Step 6: Final answer
    x = 2,797.19

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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.