Home / 7,723.40-11,585.12-2,176.75

Finding the Fourth Proportional to 7,723.40, 11,585.12 and 2,176.75

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Solution

The fourth proportional to 7,723.40, 11,585.12 and 2,176.75 is: 3,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.40 : 11,585.12 = 2,176.75 : x
  2. Step 2: Convert to fraction form
    7,723.40/11,585.12 = 2,176.75/x
  3. Step 3: Cross multiply
    7,723.40x = 11,585.12 × 2,176.75
  4. Step 4: Simplify right side
    7,723.40x = 25,217,909.96
  5. Step 5: Solve for x
    x = 25,217,909.96/7,723.40
  6. Step 6: Final answer
    x = 3,265.13

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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.