Home / 3,281.23-4,528.16-1,789.21

Finding the Fourth Proportional to 3,281.23, 4,528.16 and 1,789.21

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Solution

The fourth proportional to 3,281.23, 4,528.16 and 1,789.21 is: 2,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.23 : 4,528.16 = 1,789.21 : x
  2. Step 2: Convert to fraction form
    3,281.23/4,528.16 = 1,789.21/x
  3. Step 3: Cross multiply
    3,281.23x = 4,528.16 × 1,789.21
  4. Step 4: Simplify right side
    3,281.23x = 8,101,829.15
  5. Step 5: Solve for x
    x = 8,101,829.15/3,281.23
  6. Step 6: Final answer
    x = 2,469.14

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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.