Home / 5,618.70-8,420.76-3,767.04

Finding the Fourth Proportional to 5,618.70, 8,420.76 and 3,767.04

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Solution

The fourth proportional to 5,618.70, 8,420.76 and 3,767.04 is: 5,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.70 : 8,420.76 = 3,767.04 : x
  2. Step 2: Convert to fraction form
    5,618.70/8,420.76 = 3,767.04/x
  3. Step 3: Cross multiply
    5,618.70x = 8,420.76 × 3,767.04
  4. Step 4: Simplify right side
    5,618.70x = 31,721,339.75
  5. Step 5: Solve for x
    x = 31,721,339.75/5,618.70
  6. Step 6: Final answer
    x = 5,645.67

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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.