Home / 5,176.10-7,757.92-1,887.40

Finding the Fourth Proportional to 5,176.10, 7,757.92 and 1,887.40

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Solution

The fourth proportional to 5,176.10, 7,757.92 and 1,887.40 is: 2,828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.10 : 7,757.92 = 1,887.40 : x
  2. Step 2: Convert to fraction form
    5,176.10/7,757.92 = 1,887.40/x
  3. Step 3: Cross multiply
    5,176.10x = 7,757.92 × 1,887.40
  4. Step 4: Simplify right side
    5,176.10x = 14,642,249.98
  5. Step 5: Solve for x
    x = 14,642,249.98/5,176.10
  6. Step 6: Final answer
    x = 2,828.82

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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.