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Finding the Fourth Proportional to 3,718.48, 5,571.62 and 2,620.92

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Solution

The fourth proportional to 3,718.48, 5,571.62 and 2,620.92 is: 3,927.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.48 : 5,571.62 = 2,620.92 : x
  2. Step 2: Convert to fraction form
    3,718.48/5,571.62 = 2,620.92/x
  3. Step 3: Cross multiply
    3,718.48x = 5,571.62 × 2,620.92
  4. Step 4: Simplify right side
    3,718.48x = 14,602,770.29
  5. Step 5: Solve for x
    x = 14,602,770.29/3,718.48
  6. Step 6: Final answer
    x = 3,927.08

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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.