Home / 3,783.70-5,222.86-2,191.06

Finding the Fourth Proportional to 3,783.70, 5,222.86 and 2,191.06

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Solution

The fourth proportional to 3,783.70, 5,222.86 and 2,191.06 is: 3,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.70 : 5,222.86 = 2,191.06 : x
  2. Step 2: Convert to fraction form
    3,783.70/5,222.86 = 2,191.06/x
  3. Step 3: Cross multiply
    3,783.70x = 5,222.86 × 2,191.06
  4. Step 4: Simplify right side
    3,783.70x = 11,443,599.63
  5. Step 5: Solve for x
    x = 11,443,599.63/3,783.70
  6. Step 6: Final answer
    x = 3,024.45

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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.