Home / 2,781.68-4,172.72-1,050.24

Finding the Fourth Proportional to 2,781.68, 4,172.72 and 1,050.24

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Solution

The fourth proportional to 2,781.68, 4,172.72 and 1,050.24 is: 1,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.68 : 4,172.72 = 1,050.24 : x
  2. Step 2: Convert to fraction form
    2,781.68/4,172.72 = 1,050.24/x
  3. Step 3: Cross multiply
    2,781.68x = 4,172.72 × 1,050.24
  4. Step 4: Simplify right side
    2,781.68x = 4,382,357.45
  5. Step 5: Solve for x
    x = 4,382,357.45/2,781.68
  6. Step 6: Final answer
    x = 1,575.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.