Home / 7,190.32-10,781.22-2,802.65

Finding the Fourth Proportional to 7,190.32, 10,781.22 and 2,802.65

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Solution

The fourth proportional to 7,190.32, 10,781.22 and 2,802.65 is: 4,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.32 : 10,781.22 = 2,802.65 : x
  2. Step 2: Convert to fraction form
    7,190.32/10,781.22 = 2,802.65/x
  3. Step 3: Cross multiply
    7,190.32x = 10,781.22 × 2,802.65
  4. Step 4: Simplify right side
    7,190.32x = 30,215,987.72
  5. Step 5: Solve for x
    x = 30,215,987.72/7,190.32
  6. Step 6: Final answer
    x = 4,202.32

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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.