Home / 3,039.68-4,195.80-1,781.14

Finding the Fourth Proportional to 3,039.68, 4,195.80 and 1,781.14

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Solution

The fourth proportional to 3,039.68, 4,195.80 and 1,781.14 is: 2,458.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.68 : 4,195.80 = 1,781.14 : x
  2. Step 2: Convert to fraction form
    3,039.68/4,195.80 = 1,781.14/x
  3. Step 3: Cross multiply
    3,039.68x = 4,195.80 × 1,781.14
  4. Step 4: Simplify right side
    3,039.68x = 7,473,307.21
  5. Step 5: Solve for x
    x = 7,473,307.21/3,039.68
  6. Step 6: Final answer
    x = 2,458.58

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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.