Home / 2,141.25-2,955.33-1,209.75

Finding the Fourth Proportional to 2,141.25, 2,955.33 and 1,209.75

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Solution

The fourth proportional to 2,141.25, 2,955.33 and 1,209.75 is: 1,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.25 : 2,955.33 = 1,209.75 : x
  2. Step 2: Convert to fraction form
    2,141.25/2,955.33 = 1,209.75/x
  3. Step 3: Cross multiply
    2,141.25x = 2,955.33 × 1,209.75
  4. Step 4: Simplify right side
    2,141.25x = 3,575,210.47
  5. Step 5: Solve for x
    x = 3,575,210.47/2,141.25
  6. Step 6: Final answer
    x = 1,669.68

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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.