Home / 4,985.64-6,872.80-3,192.86

Finding the Fourth Proportional to 4,985.64, 6,872.80 and 3,192.86

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Solution

The fourth proportional to 4,985.64, 6,872.80 and 3,192.86 is: 4,401.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.64 : 6,872.80 = 3,192.86 : x
  2. Step 2: Convert to fraction form
    4,985.64/6,872.80 = 3,192.86/x
  3. Step 3: Cross multiply
    4,985.64x = 6,872.80 × 3,192.86
  4. Step 4: Simplify right side
    4,985.64x = 21,943,888.21
  5. Step 5: Solve for x
    x = 21,943,888.21/4,985.64
  6. Step 6: Final answer
    x = 4,401.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.