Home / 2,270.96-3,134.06-1,387.05

Finding the Fourth Proportional to 2,270.96, 3,134.06 and 1,387.05

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Solution

The fourth proportional to 2,270.96, 3,134.06 and 1,387.05 is: 1,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.96 : 3,134.06 = 1,387.05 : x
  2. Step 2: Convert to fraction form
    2,270.96/3,134.06 = 1,387.05/x
  3. Step 3: Cross multiply
    2,270.96x = 3,134.06 × 1,387.05
  4. Step 4: Simplify right side
    2,270.96x = 4,347,097.92
  5. Step 5: Solve for x
    x = 4,347,097.92/2,270.96
  6. Step 6: Final answer
    x = 1,914.21

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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.