Home / 1,579.94-2,180.21-950.57

Finding the Fourth Proportional to 1,579.94, 2,180.21 and 950.57

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Solution

The fourth proportional to 1,579.94, 2,180.21 and 950.57 is: 1,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.94 : 2,180.21 = 950.57 : x
  2. Step 2: Convert to fraction form
    1,579.94/2,180.21 = 950.57/x
  3. Step 3: Cross multiply
    1,579.94x = 2,180.21 × 950.57
  4. Step 4: Simplify right side
    1,579.94x = 2,072,426.57
  5. Step 5: Solve for x
    x = 2,072,426.57/1,579.94
  6. Step 6: Final answer
    x = 1,311.72

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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.