Home / 3,813.28-5,262.48-2,134.72

Finding the Fourth Proportional to 3,813.28, 5,262.48 and 2,134.72

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Solution

The fourth proportional to 3,813.28, 5,262.48 and 2,134.72 is: 2,946.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.28 : 5,262.48 = 2,134.72 : x
  2. Step 2: Convert to fraction form
    3,813.28/5,262.48 = 2,134.72/x
  3. Step 3: Cross multiply
    3,813.28x = 5,262.48 × 2,134.72
  4. Step 4: Simplify right side
    3,813.28x = 11,233,921.31
  5. Step 5: Solve for x
    x = 11,233,921.31/3,813.28
  6. Step 6: Final answer
    x = 2,946.00

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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.