Home / 3,784.06-5,221.20-2,386

Finding the Fourth Proportional to 3,784.06, 5,221.20 and 2,386

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Solution

The fourth proportional to 3,784.06, 5,221.20 and 2,386 is: 3,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.06 : 5,221.20 = 2,386 : x
  2. Step 2: Convert to fraction form
    3,784.06/5,221.20 = 2,386/x
  3. Step 3: Cross multiply
    3,784.06x = 5,221.20 × 2,386
  4. Step 4: Simplify right side
    3,784.06x = 12,457,783.20
  5. Step 5: Solve for x
    x = 12,457,783.20/3,784.06
  6. Step 6: Final answer
    x = 3,292.17

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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.