Home / 1,609.53-2,221.11-946.23

Finding the Fourth Proportional to 1,609.53, 2,221.11 and 946.23

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Solution

The fourth proportional to 1,609.53, 2,221.11 and 946.23 is: 1,305.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.53 : 2,221.11 = 946.23 : x
  2. Step 2: Convert to fraction form
    1,609.53/2,221.11 = 946.23/x
  3. Step 3: Cross multiply
    1,609.53x = 2,221.11 × 946.23
  4. Step 4: Simplify right side
    1,609.53x = 2,101,680.92
  5. Step 5: Solve for x
    x = 2,101,680.92/1,609.53
  6. Step 6: Final answer
    x = 1,305.77

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1.5x scale

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.