Home / 3,813.21-5,262.47-2,134.76

Finding the Fourth Proportional to 3,813.21, 5,262.47 and 2,134.76

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Solution

The fourth proportional to 3,813.21, 5,262.47 and 2,134.76 is: 2,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.21 : 5,262.47 = 2,134.76 : x
  2. Step 2: Convert to fraction form
    3,813.21/5,262.47 = 2,134.76/x
  3. Step 3: Cross multiply
    3,813.21x = 5,262.47 × 2,134.76
  4. Step 4: Simplify right side
    3,813.21x = 11,234,081.48
  5. Step 5: Solve for x
    x = 11,234,081.48/3,813.21
  6. Step 6: Final answer
    x = 2,946.10

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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.