Home / 1,589.42-2,193.68-1,000.15

Finding the Fourth Proportional to 1,589.42, 2,193.68 and 1,000.15

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Solution

The fourth proportional to 1,589.42, 2,193.68 and 1,000.15 is: 1,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.42 : 2,193.68 = 1,000.15 : x
  2. Step 2: Convert to fraction form
    1,589.42/2,193.68 = 1,000.15/x
  3. Step 3: Cross multiply
    1,589.42x = 2,193.68 × 1,000.15
  4. Step 4: Simplify right side
    1,589.42x = 2,194,006.07
  5. Step 5: Solve for x
    x = 2,194,006.07/1,589.42
  6. Step 6: Final answer
    x = 1,380.38

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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.