Home / 3,777.48-5,211.46-2,785.12

Finding the Fourth Proportional to 3,777.48, 5,211.46 and 2,785.12

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Solution

The fourth proportional to 3,777.48, 5,211.46 and 2,785.12 is: 3,842.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.48 : 5,211.46 = 2,785.12 : x
  2. Step 2: Convert to fraction form
    3,777.48/5,211.46 = 2,785.12/x
  3. Step 3: Cross multiply
    3,777.48x = 5,211.46 × 2,785.12
  4. Step 4: Simplify right side
    3,777.48x = 14,514,541.48
  5. Step 5: Solve for x
    x = 14,514,541.48/3,777.48
  6. Step 6: Final answer
    x = 3,842.39

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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.