Home / 3,825.56-5,285.86-3,161.30

Finding the Fourth Proportional to 3,825.56, 5,285.86 and 3,161.30

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Solution

The fourth proportional to 3,825.56, 5,285.86 and 3,161.30 is: 4,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.56 : 5,285.86 = 3,161.30 : x
  2. Step 2: Convert to fraction form
    3,825.56/5,285.86 = 3,161.30/x
  3. Step 3: Cross multiply
    3,825.56x = 5,285.86 × 3,161.30
  4. Step 4: Simplify right side
    3,825.56x = 16,710,154.89
  5. Step 5: Solve for x
    x = 16,710,154.89/3,825.56
  6. Step 6: Final answer
    x = 4,368.03

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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.