Home / 6,638.28-9,160.66-3,613.36

Finding the Fourth Proportional to 6,638.28, 9,160.66 and 3,613.36

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Solution

The fourth proportional to 6,638.28, 9,160.66 and 3,613.36 is: 4,986.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.28 : 9,160.66 = 3,613.36 : x
  2. Step 2: Convert to fraction form
    6,638.28/9,160.66 = 3,613.36/x
  3. Step 3: Cross multiply
    6,638.28x = 9,160.66 × 3,613.36
  4. Step 4: Simplify right side
    6,638.28x = 33,100,762.42
  5. Step 5: Solve for x
    x = 33,100,762.42/6,638.28
  6. Step 6: Final answer
    x = 4,986.35

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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.