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Finding the Fourth Proportional to 6,651.74, 9,977.51 and 1,720.98

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Solution

The fourth proportional to 6,651.74, 9,977.51 and 1,720.98 is: 2,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.74 : 9,977.51 = 1,720.98 : x
  2. Step 2: Convert to fraction form
    6,651.74/9,977.51 = 1,720.98/x
  3. Step 3: Cross multiply
    6,651.74x = 9,977.51 × 1,720.98
  4. Step 4: Simplify right side
    6,651.74x = 17,171,095.16
  5. Step 5: Solve for x
    x = 17,171,095.16/6,651.74
  6. Step 6: Final answer
    x = 2,581.44

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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.