Home / 5,660.70-8,491.05-1,765.11

Finding the Fourth Proportional to 5,660.70, 8,491.05 and 1,765.11

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Solution

The fourth proportional to 5,660.70, 8,491.05 and 1,765.11 is: 2,647.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.70 : 8,491.05 = 1,765.11 : x
  2. Step 2: Convert to fraction form
    5,660.70/8,491.05 = 1,765.11/x
  3. Step 3: Cross multiply
    5,660.70x = 8,491.05 × 1,765.11
  4. Step 4: Simplify right side
    5,660.70x = 14,987,637.27
  5. Step 5: Solve for x
    x = 14,987,637.27/5,660.70
  6. Step 6: Final answer
    x = 2,647.67

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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.