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Finding the Fourth Proportional to 7,083.84, 10,624.80 and 1,890.12

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Solution

The fourth proportional to 7,083.84, 10,624.80 and 1,890.12 is: 2,834.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083.84 : 10,624.80 = 1,890.12 : x
  2. Step 2: Convert to fraction form
    7,083.84/10,624.80 = 1,890.12/x
  3. Step 3: Cross multiply
    7,083.84x = 10,624.80 × 1,890.12
  4. Step 4: Simplify right side
    7,083.84x = 20,082,146.98
  5. Step 5: Solve for x
    x = 20,082,146.98/7,083.84
  6. Step 6: Final answer
    x = 2,834.92

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Similar ratio
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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.