Home / 1,690.00-2,332.19-943.92

Finding the Fourth Proportional to 1,690.00, 2,332.19 and 943.92

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Solution

The fourth proportional to 1,690.00, 2,332.19 and 943.92 is: 1,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.00 : 2,332.19 = 943.92 : x
  2. Step 2: Convert to fraction form
    1,690.00/2,332.19 = 943.92/x
  3. Step 3: Cross multiply
    1,690.00x = 2,332.19 × 943.92
  4. Step 4: Simplify right side
    1,690.00x = 2,201,403.14
  5. Step 5: Solve for x
    x = 2,201,403.14/1,690.00
  6. Step 6: Final answer
    x = 1,302.61

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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.