Home / 6,602.78-9,111.91-3,618.55

Finding the Fourth Proportional to 6,602.78, 9,111.91 and 3,618.55

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Solution

The fourth proportional to 6,602.78, 9,111.91 and 3,618.55 is: 4,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.78 : 9,111.91 = 3,618.55 : x
  2. Step 2: Convert to fraction form
    6,602.78/9,111.91 = 3,618.55/x
  3. Step 3: Cross multiply
    6,602.78x = 9,111.91 × 3,618.55
  4. Step 4: Simplify right side
    6,602.78x = 32,971,876.97
  5. Step 5: Solve for x
    x = 32,971,876.97/6,602.78
  6. Step 6: Final answer
    x = 4,993.64

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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.