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Finding the Fourth Proportional to 2,618.46, 3,927.69 and 2,210.22

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Solution

The fourth proportional to 2,618.46, 3,927.69 and 2,210.22 is: 3,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.46 : 3,927.69 = 2,210.22 : x
  2. Step 2: Convert to fraction form
    2,618.46/3,927.69 = 2,210.22/x
  3. Step 3: Cross multiply
    2,618.46x = 3,927.69 × 2,210.22
  4. Step 4: Simplify right side
    2,618.46x = 8,681,058.99
  5. Step 5: Solve for x
    x = 8,681,058.99/2,618.46
  6. Step 6: Final answer
    x = 3,315.33

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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.