Home / 2,619.63-3,613.97-2,219.59

Finding the Fourth Proportional to 2,619.63, 3,613.97 and 2,219.59

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Solution

The fourth proportional to 2,619.63, 3,613.97 and 2,219.59 is: 3,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.63 : 3,613.97 = 2,219.59 : x
  2. Step 2: Convert to fraction form
    2,619.63/3,613.97 = 2,219.59/x
  3. Step 3: Cross multiply
    2,619.63x = 3,613.97 × 2,219.59
  4. Step 4: Simplify right side
    2,619.63x = 8,021,528.19
  5. Step 5: Solve for x
    x = 8,021,528.19/2,619.63
  6. Step 6: Final answer
    x = 3,062.08

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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.