Home / 7,400.75-10,213.04-4,088.75

Finding the Fourth Proportional to 7,400.75, 10,213.04 and 4,088.75

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Solution

The fourth proportional to 7,400.75, 10,213.04 and 4,088.75 is: 5,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.75 : 10,213.04 = 4,088.75 : x
  2. Step 2: Convert to fraction form
    7,400.75/10,213.04 = 4,088.75/x
  3. Step 3: Cross multiply
    7,400.75x = 10,213.04 × 4,088.75
  4. Step 4: Simplify right side
    7,400.75x = 41,758,546.86
  5. Step 5: Solve for x
    x = 41,758,546.86/7,400.75
  6. Step 6: Final answer
    x = 5,642.48

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Half scale
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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.