Home / 6,622.55-9,138.57-3,638.31

Finding the Fourth Proportional to 6,622.55, 9,138.57 and 3,638.31

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Solution

The fourth proportional to 6,622.55, 9,138.57 and 3,638.31 is: 5,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.55 : 9,138.57 = 3,638.31 : x
  2. Step 2: Convert to fraction form
    6,622.55/9,138.57 = 3,638.31/x
  3. Step 3: Cross multiply
    6,622.55x = 9,138.57 × 3,638.31
  4. Step 4: Simplify right side
    6,622.55x = 33,248,950.62
  5. Step 5: Solve for x
    x = 33,248,950.62/6,622.55
  6. Step 6: Final answer
    x = 5,020.57

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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.