Home / 1,589.09-2,193.03-1,057.05

Finding the Fourth Proportional to 1,589.09, 2,193.03 and 1,057.05

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Solution

The fourth proportional to 1,589.09, 2,193.03 and 1,057.05 is: 1,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.09 : 2,193.03 = 1,057.05 : x
  2. Step 2: Convert to fraction form
    1,589.09/2,193.03 = 1,057.05/x
  3. Step 3: Cross multiply
    1,589.09x = 2,193.03 × 1,057.05
  4. Step 4: Simplify right side
    1,589.09x = 2,318,142.36
  5. Step 5: Solve for x
    x = 2,318,142.36/1,589.09
  6. Step 6: Final answer
    x = 1,458.79

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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.