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Finding the Fourth Proportional to 7,245.98, 10,868.06 and 2,315.21

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Solution

The fourth proportional to 7,245.98, 10,868.06 and 2,315.21 is: 3,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.98 : 10,868.06 = 2,315.21 : x
  2. Step 2: Convert to fraction form
    7,245.98/10,868.06 = 2,315.21/x
  3. Step 3: Cross multiply
    7,245.98x = 10,868.06 × 2,315.21
  4. Step 4: Simplify right side
    7,245.98x = 25,161,808.23
  5. Step 5: Solve for x
    x = 25,161,808.23/7,245.98
  6. Step 6: Final answer
    x = 3,472.52

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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.