Home / 3,281.62-4,528.12-1,955.28

Finding the Fourth Proportional to 3,281.62, 4,528.12 and 1,955.28

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Solution

The fourth proportional to 3,281.62, 4,528.12 and 1,955.28 is: 2,697.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.62 : 4,528.12 = 1,955.28 : x
  2. Step 2: Convert to fraction form
    3,281.62/4,528.12 = 1,955.28/x
  3. Step 3: Cross multiply
    3,281.62x = 4,528.12 × 1,955.28
  4. Step 4: Simplify right side
    3,281.62x = 8,853,742.47
  5. Step 5: Solve for x
    x = 8,853,742.47/3,281.62
  6. Step 6: Final answer
    x = 2,697.98

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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.