Home / 7,146.36-10,719.54-2,215.89

Finding the Fourth Proportional to 7,146.36, 10,719.54 and 2,215.89

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Solution

The fourth proportional to 7,146.36, 10,719.54 and 2,215.89 is: 3,323.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.36 : 10,719.54 = 2,215.89 : x
  2. Step 2: Convert to fraction form
    7,146.36/10,719.54 = 2,215.89/x
  3. Step 3: Cross multiply
    7,146.36x = 10,719.54 × 2,215.89
  4. Step 4: Simplify right side
    7,146.36x = 23,753,321.49
  5. Step 5: Solve for x
    x = 23,753,321.49/7,146.36
  6. Step 6: Final answer
    x = 3,323.84

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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.