Home / 7,242.30-10,859.78-3,538.98

Finding the Fourth Proportional to 7,242.30, 10,859.78 and 3,538.98

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Solution

The fourth proportional to 7,242.30, 10,859.78 and 3,538.98 is: 5,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.30 : 10,859.78 = 3,538.98 : x
  2. Step 2: Convert to fraction form
    7,242.30/10,859.78 = 3,538.98/x
  3. Step 3: Cross multiply
    7,242.30x = 10,859.78 × 3,538.98
  4. Step 4: Simplify right side
    7,242.30x = 38,432,544.22
  5. Step 5: Solve for x
    x = 38,432,544.22/7,242.30
  6. Step 6: Final answer
    x = 5,306.68

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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.