Home / 3,455.48-4,770.24-2,261.72

Finding the Fourth Proportional to 3,455.48, 4,770.24 and 2,261.72

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Solution

The fourth proportional to 3,455.48, 4,770.24 and 2,261.72 is: 3,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.48 : 4,770.24 = 2,261.72 : x
  2. Step 2: Convert to fraction form
    3,455.48/4,770.24 = 2,261.72/x
  3. Step 3: Cross multiply
    3,455.48x = 4,770.24 × 2,261.72
  4. Step 4: Simplify right side
    3,455.48x = 10,788,947.21
  5. Step 5: Solve for x
    x = 10,788,947.21/3,455.48
  6. Step 6: Final answer
    x = 3,122.27

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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.