Home / 7,242.12-10,861.90-2,047.88

Finding the Fourth Proportional to 7,242.12, 10,861.90 and 2,047.88

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Solution

The fourth proportional to 7,242.12, 10,861.90 and 2,047.88 is: 3,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.12 : 10,861.90 = 2,047.88 : x
  2. Step 2: Convert to fraction form
    7,242.12/10,861.90 = 2,047.88/x
  3. Step 3: Cross multiply
    7,242.12x = 10,861.90 × 2,047.88
  4. Step 4: Simplify right side
    7,242.12x = 22,243,867.77
  5. Step 5: Solve for x
    x = 22,243,867.77/7,242.12
  6. Step 6: Final answer
    x = 3,071.46

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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.