Home / 1,621.66-2,236.40-1,061.94

Finding the Fourth Proportional to 1,621.66, 2,236.40 and 1,061.94

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Solution

The fourth proportional to 1,621.66, 2,236.40 and 1,061.94 is: 1,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.66 : 2,236.40 = 1,061.94 : x
  2. Step 2: Convert to fraction form
    1,621.66/2,236.40 = 1,061.94/x
  3. Step 3: Cross multiply
    1,621.66x = 2,236.40 × 1,061.94
  4. Step 4: Simplify right side
    1,621.66x = 2,374,922.62
  5. Step 5: Solve for x
    x = 2,374,922.62/1,621.66
  6. Step 6: Final answer
    x = 1,464.50

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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.