Home / 7,448.20-10,278.36-4,091.04

Finding the Fourth Proportional to 7,448.20, 10,278.36 and 4,091.04

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Solution

The fourth proportional to 7,448.20, 10,278.36 and 4,091.04 is: 5,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.20 : 10,278.36 = 4,091.04 : x
  2. Step 2: Convert to fraction form
    7,448.20/10,278.36 = 4,091.04/x
  3. Step 3: Cross multiply
    7,448.20x = 10,278.36 × 4,091.04
  4. Step 4: Simplify right side
    7,448.20x = 42,049,181.89
  5. Step 5: Solve for x
    x = 42,049,181.89/7,448.20
  6. Step 6: Final answer
    x = 5,645.55

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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.