Home / 2,921.49-4,371.75-2,725.98

Finding the Fourth Proportional to 2,921.49, 4,371.75 and 2,725.98

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Solution

The fourth proportional to 2,921.49, 4,371.75 and 2,725.98 is: 4,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.49 : 4,371.75 = 2,725.98 : x
  2. Step 2: Convert to fraction form
    2,921.49/4,371.75 = 2,725.98/x
  3. Step 3: Cross multiply
    2,921.49x = 4,371.75 × 2,725.98
  4. Step 4: Simplify right side
    2,921.49x = 11,917,281.21
  5. Step 5: Solve for x
    x = 11,917,281.21/2,921.49
  6. Step 6: Final answer
    x = 4,079.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.