Home / 2,725.28-4,087.92-1,186.28

Finding the Fourth Proportional to 2,725.28, 4,087.92 and 1,186.28

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Solution

The fourth proportional to 2,725.28, 4,087.92 and 1,186.28 is: 1,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.28 : 4,087.92 = 1,186.28 : x
  2. Step 2: Convert to fraction form
    2,725.28/4,087.92 = 1,186.28/x
  3. Step 3: Cross multiply
    2,725.28x = 4,087.92 × 1,186.28
  4. Step 4: Simplify right side
    2,725.28x = 4,849,417.74
  5. Step 5: Solve for x
    x = 4,849,417.74/2,725.28
  6. Step 6: Final answer
    x = 1,779.42

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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.