Home / 5,121.45-7,682.99-1,834.47

Finding the Fourth Proportional to 5,121.45, 7,682.99 and 1,834.47

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Solution

The fourth proportional to 5,121.45, 7,682.99 and 1,834.47 is: 2,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.45 : 7,682.99 = 1,834.47 : x
  2. Step 2: Convert to fraction form
    5,121.45/7,682.99 = 1,834.47/x
  3. Step 3: Cross multiply
    5,121.45x = 7,682.99 × 1,834.47
  4. Step 4: Simplify right side
    5,121.45x = 14,094,214.67
  5. Step 5: Solve for x
    x = 14,094,214.67/5,121.45
  6. Step 6: Final answer
    x = 2,752.00

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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.