Home / 1,619.39-2,409.65-1,613.93

Finding the Fourth Proportional to 1,619.39, 2,409.65 and 1,613.93

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Solution

The fourth proportional to 1,619.39, 2,409.65 and 1,613.93 is: 2,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.39 : 2,409.65 = 1,613.93 : x
  2. Step 2: Convert to fraction form
    1,619.39/2,409.65 = 1,613.93/x
  3. Step 3: Cross multiply
    1,619.39x = 2,409.65 × 1,613.93
  4. Step 4: Simplify right side
    1,619.39x = 3,888,992.36
  5. Step 5: Solve for x
    x = 3,888,992.36/1,619.39
  6. Step 6: Final answer
    x = 2,401.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.