Home / 1,571.18-2,168.43-950.18

Finding the Fourth Proportional to 1,571.18, 2,168.43 and 950.18

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Solution

The fourth proportional to 1,571.18, 2,168.43 and 950.18 is: 1,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.18 : 2,168.43 = 950.18 : x
  2. Step 2: Convert to fraction form
    1,571.18/2,168.43 = 950.18/x
  3. Step 3: Cross multiply
    1,571.18x = 2,168.43 × 950.18
  4. Step 4: Simplify right side
    1,571.18x = 2,060,398.82
  5. Step 5: Solve for x
    x = 2,060,398.82/1,571.18
  6. Step 6: Final answer
    x = 1,311.37

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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.