Home / 1,949.09-2,686.62-1,319.42

Finding the Fourth Proportional to 1,949.09, 2,686.62 and 1,319.42

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Solution

The fourth proportional to 1,949.09, 2,686.62 and 1,319.42 is: 1,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.09 : 2,686.62 = 1,319.42 : x
  2. Step 2: Convert to fraction form
    1,949.09/2,686.62 = 1,319.42/x
  3. Step 3: Cross multiply
    1,949.09x = 2,686.62 × 1,319.42
  4. Step 4: Simplify right side
    1,949.09x = 3,544,780.16
  5. Step 5: Solve for x
    x = 3,544,780.16/1,949.09
  6. Step 6: Final answer
    x = 1,818.68

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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.