Home / 6,622.18-9,138.77-3,638.30

Finding the Fourth Proportional to 6,622.18, 9,138.77 and 3,638.30

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Solution

The fourth proportional to 6,622.18, 9,138.77 and 3,638.30 is: 5,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.18 : 9,138.77 = 3,638.30 : x
  2. Step 2: Convert to fraction form
    6,622.18/9,138.77 = 3,638.30/x
  3. Step 3: Cross multiply
    6,622.18x = 9,138.77 × 3,638.30
  4. Step 4: Simplify right side
    6,622.18x = 33,249,550.29
  5. Step 5: Solve for x
    x = 33,249,550.29/6,622.18
  6. Step 6: Final answer
    x = 5,020.94

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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.