Home / 1,441.15-1,989.07-943.61

Finding the Fourth Proportional to 1,441.15, 1,989.07 and 943.61

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Solution

The fourth proportional to 1,441.15, 1,989.07 and 943.61 is: 1,302.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.15 : 1,989.07 = 943.61 : x
  2. Step 2: Convert to fraction form
    1,441.15/1,989.07 = 943.61/x
  3. Step 3: Cross multiply
    1,441.15x = 1,989.07 × 943.61
  4. Step 4: Simplify right side
    1,441.15x = 1,876,899.35
  5. Step 5: Solve for x
    x = 1,876,899.35/1,441.15
  6. Step 6: Final answer
    x = 1,302.36

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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.