Home / 3,784.36-5,222.30-2,385.76

Finding the Fourth Proportional to 3,784.36, 5,222.30 and 2,385.76

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Solution

The fourth proportional to 3,784.36, 5,222.30 and 2,385.76 is: 3,292.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.36 : 5,222.30 = 2,385.76 : x
  2. Step 2: Convert to fraction form
    3,784.36/5,222.30 = 2,385.76/x
  3. Step 3: Cross multiply
    3,784.36x = 5,222.30 × 2,385.76
  4. Step 4: Simplify right side
    3,784.36x = 12,459,154.45
  5. Step 5: Solve for x
    x = 12,459,154.45/3,784.36
  6. Step 6: Final answer
    x = 3,292.28

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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.