Home / 1,429.95-2,143.40-936.17

Finding the Fourth Proportional to 1,429.95, 2,143.40 and 936.17

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Solution

The fourth proportional to 1,429.95, 2,143.40 and 936.17 is: 1,403.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.95 : 2,143.40 = 936.17 : x
  2. Step 2: Convert to fraction form
    1,429.95/2,143.40 = 936.17/x
  3. Step 3: Cross multiply
    1,429.95x = 2,143.40 × 936.17
  4. Step 4: Simplify right side
    1,429.95x = 2,006,591.47
  5. Step 5: Solve for x
    x = 2,006,591.47/1,429.95
  6. Step 6: Final answer
    x = 1,403.26

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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.