Home / 2,261.14-3,120.65-1,377.07

Finding the Fourth Proportional to 2,261.14, 3,120.65 and 1,377.07

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Solution

The fourth proportional to 2,261.14, 3,120.65 and 1,377.07 is: 1,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.14 : 3,120.65 = 1,377.07 : x
  2. Step 2: Convert to fraction form
    2,261.14/3,120.65 = 1,377.07/x
  3. Step 3: Cross multiply
    2,261.14x = 3,120.65 × 1,377.07
  4. Step 4: Simplify right side
    2,261.14x = 4,297,353.50
  5. Step 5: Solve for x
    x = 4,297,353.50/2,261.14
  6. Step 6: Final answer
    x = 1,900.53

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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.