Home / 7,631.91-11,438.61-3,240.14

Finding the Fourth Proportional to 7,631.91, 11,438.61 and 3,240.14

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Solution

The fourth proportional to 7,631.91, 11,438.61 and 3,240.14 is: 4,856.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.91 : 11,438.61 = 3,240.14 : x
  2. Step 2: Convert to fraction form
    7,631.91/11,438.61 = 3,240.14/x
  3. Step 3: Cross multiply
    7,631.91x = 11,438.61 × 3,240.14
  4. Step 4: Simplify right side
    7,631.91x = 37,062,697.81
  5. Step 5: Solve for x
    x = 37,062,697.81/7,631.91
  6. Step 6: Final answer
    x = 4,856.28

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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.