Home / 5,184.72-7,778.16-2,718

Finding the Fourth Proportional to 5,184.72, 7,778.16 and 2,718

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Solution

The fourth proportional to 5,184.72, 7,778.16 and 2,718 is: 4,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184.72 : 7,778.16 = 2,718 : x
  2. Step 2: Convert to fraction form
    5,184.72/7,778.16 = 2,718/x
  3. Step 3: Cross multiply
    5,184.72x = 7,778.16 × 2,718
  4. Step 4: Simplify right side
    5,184.72x = 21,141,038.88
  5. Step 5: Solve for x
    x = 21,141,038.88/5,184.72
  6. Step 6: Final answer
    x = 4,077.57

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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.