Home / 2,135.52-3,201.72-1,440.45

Finding the Fourth Proportional to 2,135.52, 3,201.72 and 1,440.45

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Solution

The fourth proportional to 2,135.52, 3,201.72 and 1,440.45 is: 2,159.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.52 : 3,201.72 = 1,440.45 : x
  2. Step 2: Convert to fraction form
    2,135.52/3,201.72 = 1,440.45/x
  3. Step 3: Cross multiply
    2,135.52x = 3,201.72 × 1,440.45
  4. Step 4: Simplify right side
    2,135.52x = 4,611,917.57
  5. Step 5: Solve for x
    x = 4,611,917.57/2,135.52
  6. Step 6: Final answer
    x = 2,159.62

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1.5x scale

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.