Home / 2,151.22-2,968.80-1,619.14

Finding the Fourth Proportional to 2,151.22, 2,968.80 and 1,619.14

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Solution

The fourth proportional to 2,151.22, 2,968.80 and 1,619.14 is: 2,234.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.22 : 2,968.80 = 1,619.14 : x
  2. Step 2: Convert to fraction form
    2,151.22/2,968.80 = 1,619.14/x
  3. Step 3: Cross multiply
    2,151.22x = 2,968.80 × 1,619.14
  4. Step 4: Simplify right side
    2,151.22x = 4,806,902.83
  5. Step 5: Solve for x
    x = 4,806,902.83/2,151.22
  6. Step 6: Final answer
    x = 2,234.50

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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.