Home / 1,941.20-2,912.15-625.14

Finding the Fourth Proportional to 1,941.20, 2,912.15 and 625.14

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Solution

The fourth proportional to 1,941.20, 2,912.15 and 625.14 is: 937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.20 : 2,912.15 = 625.14 : x
  2. Step 2: Convert to fraction form
    1,941.20/2,912.15 = 625.14/x
  3. Step 3: Cross multiply
    1,941.20x = 2,912.15 × 625.14
  4. Step 4: Simplify right side
    1,941.20x = 1,820,498.33
  5. Step 5: Solve for x
    x = 1,820,498.33/1,941.20
  6. Step 6: Final answer
    x = 937.82

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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.