Home / 2,771.76-3,826.80-1,725.36

Finding the Fourth Proportional to 2,771.76, 3,826.80 and 1,725.36

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Solution

The fourth proportional to 2,771.76, 3,826.80 and 1,725.36 is: 2,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.76 : 3,826.80 = 1,725.36 : x
  2. Step 2: Convert to fraction form
    2,771.76/3,826.80 = 1,725.36/x
  3. Step 3: Cross multiply
    2,771.76x = 3,826.80 × 1,725.36
  4. Step 4: Simplify right side
    2,771.76x = 6,602,607.65
  5. Step 5: Solve for x
    x = 6,602,607.65/2,771.76
  6. Step 6: Final answer
    x = 2,382.10

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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.