Home / 3,059.40-4,221.84-1,662.15

Finding the Fourth Proportional to 3,059.40, 4,221.84 and 1,662.15

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Solution

The fourth proportional to 3,059.40, 4,221.84 and 1,662.15 is: 2,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.40 : 4,221.84 = 1,662.15 : x
  2. Step 2: Convert to fraction form
    3,059.40/4,221.84 = 1,662.15/x
  3. Step 3: Cross multiply
    3,059.40x = 4,221.84 × 1,662.15
  4. Step 4: Simplify right side
    3,059.40x = 7,017,331.36
  5. Step 5: Solve for x
    x = 7,017,331.36/3,059.40
  6. Step 6: Final answer
    x = 2,293.70

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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.