Home / 7,111.76-10,670.40-3,823.16

Finding the Fourth Proportional to 7,111.76, 10,670.40 and 3,823.16

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Solution

The fourth proportional to 7,111.76, 10,670.40 and 3,823.16 is: 5,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.76 : 10,670.40 = 3,823.16 : x
  2. Step 2: Convert to fraction form
    7,111.76/10,670.40 = 3,823.16/x
  3. Step 3: Cross multiply
    7,111.76x = 10,670.40 × 3,823.16
  4. Step 4: Simplify right side
    7,111.76x = 40,794,593.11
  5. Step 5: Solve for x
    x = 40,794,593.11/7,111.76
  6. Step 6: Final answer
    x = 5,736.22

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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.