Home / 2,221.04-3,065.28-1,336.88

Finding the Fourth Proportional to 2,221.04, 3,065.28 and 1,336.88

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Solution

The fourth proportional to 2,221.04, 3,065.28 and 1,336.88 is: 1,845.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.04 : 3,065.28 = 1,336.88 : x
  2. Step 2: Convert to fraction form
    2,221.04/3,065.28 = 1,336.88/x
  3. Step 3: Cross multiply
    2,221.04x = 3,065.28 × 1,336.88
  4. Step 4: Simplify right side
    2,221.04x = 4,097,911.53
  5. Step 5: Solve for x
    x = 4,097,911.53/2,221.04
  6. Step 6: Final answer
    x = 1,845.04

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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.