Home / 6,138.20-8,470.77-3,485.67

Finding the Fourth Proportional to 6,138.20, 8,470.77 and 3,485.67

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Solution

The fourth proportional to 6,138.20, 8,470.77 and 3,485.67 is: 4,810.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.20 : 8,470.77 = 3,485.67 : x
  2. Step 2: Convert to fraction form
    6,138.20/8,470.77 = 3,485.67/x
  3. Step 3: Cross multiply
    6,138.20x = 8,470.77 × 3,485.67
  4. Step 4: Simplify right side
    6,138.20x = 29,526,308.87
  5. Step 5: Solve for x
    x = 29,526,308.87/6,138.20
  6. Step 6: Final answer
    x = 4,810.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.