Home / 2,158.60-3,228.90-1,966.36

Finding the Fourth Proportional to 2,158.60, 3,228.90 and 1,966.36

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Solution

The fourth proportional to 2,158.60, 3,228.90 and 1,966.36 is: 2,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.60 : 3,228.90 = 1,966.36 : x
  2. Step 2: Convert to fraction form
    2,158.60/3,228.90 = 1,966.36/x
  3. Step 3: Cross multiply
    2,158.60x = 3,228.90 × 1,966.36
  4. Step 4: Simplify right side
    2,158.60x = 6,349,179.80
  5. Step 5: Solve for x
    x = 6,349,179.80/2,158.60
  6. Step 6: Final answer
    x = 2,941.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.