Home / 2,820.71-4,228.66-1,725.85

Finding the Fourth Proportional to 2,820.71, 4,228.66 and 1,725.85

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Solution

The fourth proportional to 2,820.71, 4,228.66 and 1,725.85 is: 2,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.71 : 4,228.66 = 1,725.85 : x
  2. Step 2: Convert to fraction form
    2,820.71/4,228.66 = 1,725.85/x
  3. Step 3: Cross multiply
    2,820.71x = 4,228.66 × 1,725.85
  4. Step 4: Simplify right side
    2,820.71x = 7,298,032.86
  5. Step 5: Solve for x
    x = 7,298,032.86/2,820.71
  6. Step 6: Final answer
    x = 2,587.30

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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.