Home / 7,311.30-10,089.69-4,439.21

Finding the Fourth Proportional to 7,311.30, 10,089.69 and 4,439.21

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Solution

The fourth proportional to 7,311.30, 10,089.69 and 4,439.21 is: 6,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.30 : 10,089.69 = 4,439.21 : x
  2. Step 2: Convert to fraction form
    7,311.30/10,089.69 = 4,439.21/x
  3. Step 3: Cross multiply
    7,311.30x = 10,089.69 × 4,439.21
  4. Step 4: Simplify right side
    7,311.30x = 44,790,202.30
  5. Step 5: Solve for x
    x = 44,790,202.30/7,311.30
  6. Step 6: Final answer
    x = 6,126.16

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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.