Home / 1,039.03-1,434.11-933.93

Finding the Fourth Proportional to 1,039.03, 1,434.11 and 933.93

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Solution

The fourth proportional to 1,039.03, 1,434.11 and 933.93 is: 1,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.03 : 1,434.11 = 933.93 : x
  2. Step 2: Convert to fraction form
    1,039.03/1,434.11 = 933.93/x
  3. Step 3: Cross multiply
    1,039.03x = 1,434.11 × 933.93
  4. Step 4: Simplify right side
    1,039.03x = 1,339,353.68
  5. Step 5: Solve for x
    x = 1,339,353.68/1,039.03
  6. Step 6: Final answer
    x = 1,289.05

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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.