Home / 2,095.85-3,140.14-1,272.39

Finding the Fourth Proportional to 2,095.85, 3,140.14 and 1,272.39

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Solution

The fourth proportional to 2,095.85, 3,140.14 and 1,272.39 is: 1,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.85 : 3,140.14 = 1,272.39 : x
  2. Step 2: Convert to fraction form
    2,095.85/3,140.14 = 1,272.39/x
  3. Step 3: Cross multiply
    2,095.85x = 3,140.14 × 1,272.39
  4. Step 4: Simplify right side
    2,095.85x = 3,995,482.73
  5. Step 5: Solve for x
    x = 3,995,482.73/2,095.85
  6. Step 6: Final answer
    x = 1,906.38

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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.