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Finding the Fourth Proportional to 6,655.01, 9,980.46 and 2,758.50

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Solution

The fourth proportional to 6,655.01, 9,980.46 and 2,758.50 is: 4,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.01 : 9,980.46 = 2,758.50 : x
  2. Step 2: Convert to fraction form
    6,655.01/9,980.46 = 2,758.50/x
  3. Step 3: Cross multiply
    6,655.01x = 9,980.46 × 2,758.50
  4. Step 4: Simplify right side
    6,655.01x = 27,531,098.91
  5. Step 5: Solve for x
    x = 27,531,098.91/6,655.01
  6. Step 6: Final answer
    x = 4,136.90

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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.