Home / 7,191.44-10,778.52-3,904.40

Finding the Fourth Proportional to 7,191.44, 10,778.52 and 3,904.40

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Solution

The fourth proportional to 7,191.44, 10,778.52 and 3,904.40 is: 5,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.44 : 10,778.52 = 3,904.40 : x
  2. Step 2: Convert to fraction form
    7,191.44/10,778.52 = 3,904.40/x
  3. Step 3: Cross multiply
    7,191.44x = 10,778.52 × 3,904.40
  4. Step 4: Simplify right side
    7,191.44x = 42,083,653.49
  5. Step 5: Solve for x
    x = 42,083,653.49/7,191.44
  6. Step 6: Final answer
    x = 5,851.91

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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.