Home / 3,524.30-5,286.81-1,215.50

Finding the Fourth Proportional to 3,524.30, 5,286.81 and 1,215.50

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Solution

The fourth proportional to 3,524.30, 5,286.81 and 1,215.50 is: 1,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,524.30 : 5,286.81 = 1,215.50 : x
  2. Step 2: Convert to fraction form
    3,524.30/5,286.81 = 1,215.50/x
  3. Step 3: Cross multiply
    3,524.30x = 5,286.81 × 1,215.50
  4. Step 4: Simplify right side
    3,524.30x = 6,426,117.56
  5. Step 5: Solve for x
    x = 6,426,117.56/3,524.30
  6. Step 6: Final answer
    x = 1,823.37

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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.