Home / 5,156.65-7,733.74-2,380.66

Finding the Fourth Proportional to 5,156.65, 7,733.74 and 2,380.66

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Solution

The fourth proportional to 5,156.65, 7,733.74 and 2,380.66 is: 3,570.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.65 : 7,733.74 = 2,380.66 : x
  2. Step 2: Convert to fraction form
    5,156.65/7,733.74 = 2,380.66/x
  3. Step 3: Cross multiply
    5,156.65x = 7,733.74 × 2,380.66
  4. Step 4: Simplify right side
    5,156.65x = 18,411,365.12
  5. Step 5: Solve for x
    x = 18,411,365.12/5,156.65
  6. Step 6: Final answer
    x = 3,570.41

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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.