Home / 1,841.25-2,540.90-1,095.20

Finding the Fourth Proportional to 1,841.25, 2,540.90 and 1,095.20

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Solution

The fourth proportional to 1,841.25, 2,540.90 and 1,095.20 is: 1,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.25 : 2,540.90 = 1,095.20 : x
  2. Step 2: Convert to fraction form
    1,841.25/2,540.90 = 1,095.20/x
  3. Step 3: Cross multiply
    1,841.25x = 2,540.90 × 1,095.20
  4. Step 4: Simplify right side
    1,841.25x = 2,782,783.71
  5. Step 5: Solve for x
    x = 2,782,783.71/1,841.25
  6. Step 6: Final answer
    x = 1,511.36

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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.