Home / 4,909.39-6,779.42-3,144.06

Finding the Fourth Proportional to 4,909.39, 6,779.42 and 3,144.06

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Solution

The fourth proportional to 4,909.39, 6,779.42 and 3,144.06 is: 4,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.39 : 6,779.42 = 3,144.06 : x
  2. Step 2: Convert to fraction form
    4,909.39/6,779.42 = 3,144.06/x
  3. Step 3: Cross multiply
    4,909.39x = 6,779.42 × 3,144.06
  4. Step 4: Simplify right side
    4,909.39x = 21,314,903.25
  5. Step 5: Solve for x
    x = 21,314,903.25/4,909.39
  6. Step 6: Final answer
    x = 4,341.66

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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.