Home / 1,611.70-2,224.67-948.92

Finding the Fourth Proportional to 1,611.70, 2,224.67 and 948.92

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Solution

The fourth proportional to 1,611.70, 2,224.67 and 948.92 is: 1,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.70 : 2,224.67 = 948.92 : x
  2. Step 2: Convert to fraction form
    1,611.70/2,224.67 = 948.92/x
  3. Step 3: Cross multiply
    1,611.70x = 2,224.67 × 948.92
  4. Step 4: Simplify right side
    1,611.70x = 2,111,017.99
  5. Step 5: Solve for x
    x = 2,111,017.99/1,611.70
  6. Step 6: Final answer
    x = 1,309.81

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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.