Home / 7,381.30-11,072.08-2,187.30

Finding the Fourth Proportional to 7,381.30, 11,072.08 and 2,187.30

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Solution

The fourth proportional to 7,381.30, 11,072.08 and 2,187.30 is: 3,280.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.30 : 11,072.08 = 2,187.30 : x
  2. Step 2: Convert to fraction form
    7,381.30/11,072.08 = 2,187.30/x
  3. Step 3: Cross multiply
    7,381.30x = 11,072.08 × 2,187.30
  4. Step 4: Simplify right side
    7,381.30x = 24,217,960.58
  5. Step 5: Solve for x
    x = 24,217,960.58/7,381.30
  6. Step 6: Final answer
    x = 3,280.99

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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.