Home / 5,317.17-7,974.83-1,420.66

Finding the Fourth Proportional to 5,317.17, 7,974.83 and 1,420.66

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Solution

The fourth proportional to 5,317.17, 7,974.83 and 1,420.66 is: 2,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.17 : 7,974.83 = 1,420.66 : x
  2. Step 2: Convert to fraction form
    5,317.17/7,974.83 = 1,420.66/x
  3. Step 3: Cross multiply
    5,317.17x = 7,974.83 × 1,420.66
  4. Step 4: Simplify right side
    5,317.17x = 11,329,514.88
  5. Step 5: Solve for x
    x = 11,329,514.88/5,317.17
  6. Step 6: Final answer
    x = 2,130.74

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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.