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Finding the Fourth Proportional to 7,065.32, 9,750.48 and 4,081.55

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Solution

The fourth proportional to 7,065.32, 9,750.48 and 4,081.55 is: 5,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.32 : 9,750.48 = 4,081.55 : x
  2. Step 2: Convert to fraction form
    7,065.32/9,750.48 = 4,081.55/x
  3. Step 3: Cross multiply
    7,065.32x = 9,750.48 × 4,081.55
  4. Step 4: Simplify right side
    7,065.32x = 39,797,071.64
  5. Step 5: Solve for x
    x = 39,797,071.64/7,065.32
  6. Step 6: Final answer
    x = 5,632.73

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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.