Home / 2,104.91-2,904.52-1,220.59

Finding the Fourth Proportional to 2,104.91, 2,904.52 and 1,220.59

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Solution

The fourth proportional to 2,104.91, 2,904.52 and 1,220.59 is: 1,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.91 : 2,904.52 = 1,220.59 : x
  2. Step 2: Convert to fraction form
    2,104.91/2,904.52 = 1,220.59/x
  3. Step 3: Cross multiply
    2,104.91x = 2,904.52 × 1,220.59
  4. Step 4: Simplify right side
    2,104.91x = 3,545,228.07
  5. Step 5: Solve for x
    x = 3,545,228.07/2,104.91
  6. Step 6: Final answer
    x = 1,684.27

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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.