Home / 1,941.49-2,912.46-625.15

Finding the Fourth Proportional to 1,941.49, 2,912.46 and 625.15

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Solution

The fourth proportional to 1,941.49, 2,912.46 and 625.15 is: 937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.49 : 2,912.46 = 625.15 : x
  2. Step 2: Convert to fraction form
    1,941.49/2,912.46 = 625.15/x
  3. Step 3: Cross multiply
    1,941.49x = 2,912.46 × 625.15
  4. Step 4: Simplify right side
    1,941.49x = 1,820,724.37
  5. Step 5: Solve for x
    x = 1,820,724.37/1,941.49
  6. Step 6: Final answer
    x = 937.80

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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.