Home / 7,821.20-11,733.08-2,554.68

Finding the Fourth Proportional to 7,821.20, 11,733.08 and 2,554.68

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Solution

The fourth proportional to 7,821.20, 11,733.08 and 2,554.68 is: 3,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.20 : 11,733.08 = 2,554.68 : x
  2. Step 2: Convert to fraction form
    7,821.20/11,733.08 = 2,554.68/x
  3. Step 3: Cross multiply
    7,821.20x = 11,733.08 × 2,554.68
  4. Step 4: Simplify right side
    7,821.20x = 29,974,264.81
  5. Step 5: Solve for x
    x = 29,974,264.81/7,821.20
  6. Step 6: Final answer
    x = 3,832.44

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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.