Home / 3,281.85-4,530.06-2,147.58

Finding the Fourth Proportional to 3,281.85, 4,530.06 and 2,147.58

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Solution

The fourth proportional to 3,281.85, 4,530.06 and 2,147.58 is: 2,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.85 : 4,530.06 = 2,147.58 : x
  2. Step 2: Convert to fraction form
    3,281.85/4,530.06 = 2,147.58/x
  3. Step 3: Cross multiply
    3,281.85x = 4,530.06 × 2,147.58
  4. Step 4: Simplify right side
    3,281.85x = 9,728,666.25
  5. Step 5: Solve for x
    x = 9,728,666.25/3,281.85
  6. Step 6: Final answer
    x = 2,964.38

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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.