Home / 2,104.39-2,904-1,220.14

Finding the Fourth Proportional to 2,104.39, 2,904 and 1,220.14

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Solution

The fourth proportional to 2,104.39, 2,904 and 1,220.14 is: 1,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.39 : 2,904 = 1,220.14 : x
  2. Step 2: Convert to fraction form
    2,104.39/2,904 = 1,220.14/x
  3. Step 3: Cross multiply
    2,104.39x = 2,904 × 1,220.14
  4. Step 4: Simplify right side
    2,104.39x = 3,543,272.04
  5. Step 5: Solve for x
    x = 3,543,272.04/2,104.39
  6. Step 6: Final answer
    x = 1,683.76

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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.