Home / 1,591.55-2,380.94-1,318.17

Finding the Fourth Proportional to 1,591.55, 2,380.94 and 1,318.17

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Solution

The fourth proportional to 1,591.55, 2,380.94 and 1,318.17 is: 1,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.55 : 2,380.94 = 1,318.17 : x
  2. Step 2: Convert to fraction form
    1,591.55/2,380.94 = 1,318.17/x
  3. Step 3: Cross multiply
    1,591.55x = 2,380.94 × 1,318.17
  4. Step 4: Simplify right side
    1,591.55x = 3,138,477.09
  5. Step 5: Solve for x
    x = 3,138,477.09/1,591.55
  6. Step 6: Final answer
    x = 1,971.97

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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.