Home / 3,589.86-5,385.30-1,509.98

Finding the Fourth Proportional to 3,589.86, 5,385.30 and 1,509.98

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Solution

The fourth proportional to 3,589.86, 5,385.30 and 1,509.98 is: 2,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.86 : 5,385.30 = 1,509.98 : x
  2. Step 2: Convert to fraction form
    3,589.86/5,385.30 = 1,509.98/x
  3. Step 3: Cross multiply
    3,589.86x = 5,385.30 × 1,509.98
  4. Step 4: Simplify right side
    3,589.86x = 8,131,695.29
  5. Step 5: Solve for x
    x = 8,131,695.29/3,589.86
  6. Step 6: Final answer
    x = 2,265.18

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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.