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Finding the Fourth Proportional to 5,589.74, 8,385.03 and 1,890.74

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Solution

The fourth proportional to 5,589.74, 8,385.03 and 1,890.74 is: 2,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.74 : 8,385.03 = 1,890.74 : x
  2. Step 2: Convert to fraction form
    5,589.74/8,385.03 = 1,890.74/x
  3. Step 3: Cross multiply
    5,589.74x = 8,385.03 × 1,890.74
  4. Step 4: Simplify right side
    5,589.74x = 15,853,911.62
  5. Step 5: Solve for x
    x = 15,853,911.62/5,589.74
  6. Step 6: Final answer
    x = 2,836.25

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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.