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Finding the Fourth Proportional to 5,605.07, 8,400.22 and 2,639.50

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Solution

The fourth proportional to 5,605.07, 8,400.22 and 2,639.50 is: 3,955.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.07 : 8,400.22 = 2,639.50 : x
  2. Step 2: Convert to fraction form
    5,605.07/8,400.22 = 2,639.50/x
  3. Step 3: Cross multiply
    5,605.07x = 8,400.22 × 2,639.50
  4. Step 4: Simplify right side
    5,605.07x = 22,172,380.69
  5. Step 5: Solve for x
    x = 22,172,380.69/5,605.07
  6. Step 6: Final answer
    x = 3,955.77

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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.