Home / 1,960.09-2,941.45-727.51

Finding the Fourth Proportional to 1,960.09, 2,941.45 and 727.51

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Solution

The fourth proportional to 1,960.09, 2,941.45 and 727.51 is: 1,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.09 : 2,941.45 = 727.51 : x
  2. Step 2: Convert to fraction form
    1,960.09/2,941.45 = 727.51/x
  3. Step 3: Cross multiply
    1,960.09x = 2,941.45 × 727.51
  4. Step 4: Simplify right side
    1,960.09x = 2,139,934.29
  5. Step 5: Solve for x
    x = 2,139,934.29/1,960.09
  6. Step 6: Final answer
    x = 1,091.75

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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.