Home / 2,104.08-2,903.61-1,220.38

Finding the Fourth Proportional to 2,104.08, 2,903.61 and 1,220.38

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Solution

The fourth proportional to 2,104.08, 2,903.61 and 1,220.38 is: 1,684.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.08 : 2,903.61 = 1,220.38 : x
  2. Step 2: Convert to fraction form
    2,104.08/2,903.61 = 1,220.38/x
  3. Step 3: Cross multiply
    2,104.08x = 2,903.61 × 1,220.38
  4. Step 4: Simplify right side
    2,104.08x = 3,543,507.57
  5. Step 5: Solve for x
    x = 3,543,507.57/2,104.08
  6. Step 6: Final answer
    x = 1,684.11

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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.