Home / 2,162.60-3,239.79-1,283.24

Finding the Fourth Proportional to 2,162.60, 3,239.79 and 1,283.24

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Solution

The fourth proportional to 2,162.60, 3,239.79 and 1,283.24 is: 1,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.60 : 3,239.79 = 1,283.24 : x
  2. Step 2: Convert to fraction form
    2,162.60/3,239.79 = 1,283.24/x
  3. Step 3: Cross multiply
    2,162.60x = 3,239.79 × 1,283.24
  4. Step 4: Simplify right side
    2,162.60x = 4,157,424.07
  5. Step 5: Solve for x
    x = 4,157,424.07/2,162.60
  6. Step 6: Final answer
    x = 1,922.42

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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.