Home / 6,651.20-9,976.77-1,971.57

Finding the Fourth Proportional to 6,651.20, 9,976.77 and 1,971.57

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Solution

The fourth proportional to 6,651.20, 9,976.77 and 1,971.57 is: 2,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.20 : 9,976.77 = 1,971.57 : x
  2. Step 2: Convert to fraction form
    6,651.20/9,976.77 = 1,971.57/x
  3. Step 3: Cross multiply
    6,651.20x = 9,976.77 × 1,971.57
  4. Step 4: Simplify right side
    6,651.20x = 19,669,900.43
  5. Step 5: Solve for x
    x = 19,669,900.43/6,651.20
  6. Step 6: Final answer
    x = 2,957.35

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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.