Home / 2,104.45-2,904.66-1,220.13

Finding the Fourth Proportional to 2,104.45, 2,904.66 and 1,220.13

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Solution

The fourth proportional to 2,104.45, 2,904.66 and 1,220.13 is: 1,684.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.45 : 2,904.66 = 1,220.13 : x
  2. Step 2: Convert to fraction form
    2,104.45/2,904.66 = 1,220.13/x
  3. Step 3: Cross multiply
    2,104.45x = 2,904.66 × 1,220.13
  4. Step 4: Simplify right side
    2,104.45x = 3,544,062.81
  5. Step 5: Solve for x
    x = 3,544,062.81/2,104.45
  6. Step 6: Final answer
    x = 1,684.08

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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.