Home / 3,589.85-5,384.78-1,640.69

Finding the Fourth Proportional to 3,589.85, 5,384.78 and 1,640.69

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Solution

The fourth proportional to 3,589.85, 5,384.78 and 1,640.69 is: 2,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.85 : 5,384.78 = 1,640.69 : x
  2. Step 2: Convert to fraction form
    3,589.85/5,384.78 = 1,640.69/x
  3. Step 3: Cross multiply
    3,589.85x = 5,384.78 × 1,640.69
  4. Step 4: Simplify right side
    3,589.85x = 8,834,737.13
  5. Step 5: Solve for x
    x = 8,834,737.13/3,589.85
  6. Step 6: Final answer
    x = 2,461.03

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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.