Home / 6,538.50-9,809.91-2,640.78

Finding the Fourth Proportional to 6,538.50, 9,809.91 and 2,640.78

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Solution

The fourth proportional to 6,538.50, 9,809.91 and 2,640.78 is: 3,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,538.50 : 9,809.91 = 2,640.78 : x
  2. Step 2: Convert to fraction form
    6,538.50/9,809.91 = 2,640.78/x
  3. Step 3: Cross multiply
    6,538.50x = 9,809.91 × 2,640.78
  4. Step 4: Simplify right side
    6,538.50x = 25,905,814.13
  5. Step 5: Solve for x
    x = 25,905,814.13/6,538.50
  6. Step 6: Final answer
    x = 3,962.04

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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.