Home / 3,783.29-5,221.40-2,291.17

Finding the Fourth Proportional to 3,783.29, 5,221.40 and 2,291.17

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Solution

The fourth proportional to 3,783.29, 5,221.40 and 2,291.17 is: 3,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.29 : 5,221.40 = 2,291.17 : x
  2. Step 2: Convert to fraction form
    3,783.29/5,221.40 = 2,291.17/x
  3. Step 3: Cross multiply
    3,783.29x = 5,221.40 × 2,291.17
  4. Step 4: Simplify right side
    3,783.29x = 11,963,077.48
  5. Step 5: Solve for x
    x = 11,963,077.48/3,783.29
  6. Step 6: Final answer
    x = 3,162.09

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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.