Home / 1,941.61-2,911.72-625.31

Finding the Fourth Proportional to 1,941.61, 2,911.72 and 625.31

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Solution

The fourth proportional to 1,941.61, 2,911.72 and 625.31 is: 937.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.61 : 2,911.72 = 625.31 : x
  2. Step 2: Convert to fraction form
    1,941.61/2,911.72 = 625.31/x
  3. Step 3: Cross multiply
    1,941.61x = 2,911.72 × 625.31
  4. Step 4: Simplify right side
    1,941.61x = 1,820,713.07
  5. Step 5: Solve for x
    x = 1,820,713.07/1,941.61
  6. Step 6: Final answer
    x = 937.74

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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.