Home / 4,985.72-6,883.14-3,309.39

Finding the Fourth Proportional to 4,985.72, 6,883.14 and 3,309.39

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Solution

The fourth proportional to 4,985.72, 6,883.14 and 3,309.39 is: 4,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.72 : 6,883.14 = 3,309.39 : x
  2. Step 2: Convert to fraction form
    4,985.72/6,883.14 = 3,309.39/x
  3. Step 3: Cross multiply
    4,985.72x = 6,883.14 × 3,309.39
  4. Step 4: Simplify right side
    4,985.72x = 22,779,007.09
  5. Step 5: Solve for x
    x = 22,779,007.09/4,985.72
  6. Step 6: Final answer
    x = 4,568.85

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1.5x scale

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.