Home / 1,669.30-2,303.81-961.17

Finding the Fourth Proportional to 1,669.30, 2,303.81 and 961.17

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Solution

The fourth proportional to 1,669.30, 2,303.81 and 961.17 is: 1,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.30 : 2,303.81 = 961.17 : x
  2. Step 2: Convert to fraction form
    1,669.30/2,303.81 = 961.17/x
  3. Step 3: Cross multiply
    1,669.30x = 2,303.81 × 961.17
  4. Step 4: Simplify right side
    1,669.30x = 2,214,353.06
  5. Step 5: Solve for x
    x = 2,214,353.06/1,669.30
  6. Step 6: Final answer
    x = 1,326.51

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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.