Home / 7,225.42-9,971.67-4,082.20

Finding the Fourth Proportional to 7,225.42, 9,971.67 and 4,082.20

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Solution

The fourth proportional to 7,225.42, 9,971.67 and 4,082.20 is: 5,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.42 : 9,971.67 = 4,082.20 : x
  2. Step 2: Convert to fraction form
    7,225.42/9,971.67 = 4,082.20/x
  3. Step 3: Cross multiply
    7,225.42x = 9,971.67 × 4,082.20
  4. Step 4: Simplify right side
    7,225.42x = 40,706,351.27
  5. Step 5: Solve for x
    x = 40,706,351.27/7,225.42
  6. Step 6: Final answer
    x = 5,633.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.