Home / 2,150.85-3,216.56-1,657.17

Finding the Fourth Proportional to 2,150.85, 3,216.56 and 1,657.17

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Solution

The fourth proportional to 2,150.85, 3,216.56 and 1,657.17 is: 2,478.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.85 : 3,216.56 = 1,657.17 : x
  2. Step 2: Convert to fraction form
    2,150.85/3,216.56 = 1,657.17/x
  3. Step 3: Cross multiply
    2,150.85x = 3,216.56 × 1,657.17
  4. Step 4: Simplify right side
    2,150.85x = 5,330,378.45
  5. Step 5: Solve for x
    x = 5,330,378.45/2,150.85
  6. Step 6: Final answer
    x = 2,478.27

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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.