Home / 2,221.47-3,065.58-1,336.95

Finding the Fourth Proportional to 2,221.47, 3,065.58 and 1,336.95

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Solution

The fourth proportional to 2,221.47, 3,065.58 and 1,336.95 is: 1,844.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.47 : 3,065.58 = 1,336.95 : x
  2. Step 2: Convert to fraction form
    2,221.47/3,065.58 = 1,336.95/x
  3. Step 3: Cross multiply
    2,221.47x = 3,065.58 × 1,336.95
  4. Step 4: Simplify right side
    2,221.47x = 4,098,527.18
  5. Step 5: Solve for x
    x = 4,098,527.18/2,221.47
  6. Step 6: Final answer
    x = 1,844.96

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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.