Home / 2,637.82-3,640.80-1,519.40

Finding the Fourth Proportional to 2,637.82, 3,640.80 and 1,519.40

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Solution

The fourth proportional to 2,637.82, 3,640.80 and 1,519.40 is: 2,097.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.82 : 3,640.80 = 1,519.40 : x
  2. Step 2: Convert to fraction form
    2,637.82/3,640.80 = 1,519.40/x
  3. Step 3: Cross multiply
    2,637.82x = 3,640.80 × 1,519.40
  4. Step 4: Simplify right side
    2,637.82x = 5,531,823.92
  5. Step 5: Solve for x
    x = 5,531,823.92/2,637.82
  6. Step 6: Final answer
    x = 2,097.12

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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.