Home / 2,141.44-2,955.29-1,209.94

Finding the Fourth Proportional to 2,141.44, 2,955.29 and 1,209.94

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Solution

The fourth proportional to 2,141.44, 2,955.29 and 1,209.94 is: 1,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.44 : 2,955.29 = 1,209.94 : x
  2. Step 2: Convert to fraction form
    2,141.44/2,955.29 = 1,209.94/x
  3. Step 3: Cross multiply
    2,141.44x = 2,955.29 × 1,209.94
  4. Step 4: Simplify right side
    2,141.44x = 3,575,710.14
  5. Step 5: Solve for x
    x = 3,575,710.14/2,141.44
  6. Step 6: Final answer
    x = 1,669.77

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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.