Home / 1,605.66-2,213.35-1,132.21

Finding the Fourth Proportional to 1,605.66, 2,213.35 and 1,132.21

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Solution

The fourth proportional to 1,605.66, 2,213.35 and 1,132.21 is: 1,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.66 : 2,213.35 = 1,132.21 : x
  2. Step 2: Convert to fraction form
    1,605.66/2,213.35 = 1,132.21/x
  3. Step 3: Cross multiply
    1,605.66x = 2,213.35 × 1,132.21
  4. Step 4: Simplify right side
    1,605.66x = 2,505,977.00
  5. Step 5: Solve for x
    x = 2,505,977.00/1,605.66
  6. Step 6: Final answer
    x = 1,560.71

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1.5x scale

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.