Home / 1,591.94-2,195.55-1,119.30

Finding the Fourth Proportional to 1,591.94, 2,195.55 and 1,119.30

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Solution

The fourth proportional to 1,591.94, 2,195.55 and 1,119.30 is: 1,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.94 : 2,195.55 = 1,119.30 : x
  2. Step 2: Convert to fraction form
    1,591.94/2,195.55 = 1,119.30/x
  3. Step 3: Cross multiply
    1,591.94x = 2,195.55 × 1,119.30
  4. Step 4: Simplify right side
    1,591.94x = 2,457,479.12
  5. Step 5: Solve for x
    x = 2,457,479.12/1,591.94
  6. Step 6: Final answer
    x = 1,543.71

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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.