Home / 1,441.12-1,988.07-943.60

Finding the Fourth Proportional to 1,441.12, 1,988.07 and 943.60

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Solution

The fourth proportional to 1,441.12, 1,988.07 and 943.60 is: 1,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.12 : 1,988.07 = 943.60 : x
  2. Step 2: Convert to fraction form
    1,441.12/1,988.07 = 943.60/x
  3. Step 3: Cross multiply
    1,441.12x = 1,988.07 × 943.60
  4. Step 4: Simplify right side
    1,441.12x = 1,875,942.85
  5. Step 5: Solve for x
    x = 1,875,942.85/1,441.12
  6. Step 6: Final answer
    x = 1,301.73

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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.