Home / 5,605.43-8,405.70-1,906.67

Finding the Fourth Proportional to 5,605.43, 8,405.70 and 1,906.67

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Solution

The fourth proportional to 5,605.43, 8,405.70 and 1,906.67 is: 2,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.43 : 8,405.70 = 1,906.67 : x
  2. Step 2: Convert to fraction form
    5,605.43/8,405.70 = 1,906.67/x
  3. Step 3: Cross multiply
    5,605.43x = 8,405.70 × 1,906.67
  4. Step 4: Simplify right side
    5,605.43x = 16,026,896.02
  5. Step 5: Solve for x
    x = 16,026,896.02/5,605.43
  6. Step 6: Final answer
    x = 2,859.17

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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.