Home / 3,801.30-5,245.64-2,385.74

Finding the Fourth Proportional to 3,801.30, 5,245.64 and 2,385.74

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Solution

The fourth proportional to 3,801.30, 5,245.64 and 2,385.74 is: 3,292.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.30 : 5,245.64 = 2,385.74 : x
  2. Step 2: Convert to fraction form
    3,801.30/5,245.64 = 2,385.74/x
  3. Step 3: Cross multiply
    3,801.30x = 5,245.64 × 2,385.74
  4. Step 4: Simplify right side
    3,801.30x = 12,514,743.31
  5. Step 5: Solve for x
    x = 12,514,743.31/3,801.30
  6. Step 6: Final answer
    x = 3,292.23

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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.