Home / 6,651.54-9,977.30-1,721.67

Finding the Fourth Proportional to 6,651.54, 9,977.30 and 1,721.67

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Solution

The fourth proportional to 6,651.54, 9,977.30 and 1,721.67 is: 2,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.54 : 9,977.30 = 1,721.67 : x
  2. Step 2: Convert to fraction form
    6,651.54/9,977.30 = 1,721.67/x
  3. Step 3: Cross multiply
    6,651.54x = 9,977.30 × 1,721.67
  4. Step 4: Simplify right side
    6,651.54x = 17,177,609.48
  5. Step 5: Solve for x
    x = 17,177,609.48/6,651.54
  6. Step 6: Final answer
    x = 2,582.50

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Double scale
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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.