Home / 4,914.09-6,779.22-3,320.21

Finding the Fourth Proportional to 4,914.09, 6,779.22 and 3,320.21

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Solution

The fourth proportional to 4,914.09, 6,779.22 and 3,320.21 is: 4,580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.09 : 6,779.22 = 3,320.21 : x
  2. Step 2: Convert to fraction form
    4,914.09/6,779.22 = 3,320.21/x
  3. Step 3: Cross multiply
    4,914.09x = 6,779.22 × 3,320.21
  4. Step 4: Simplify right side
    4,914.09x = 22,508,434.04
  5. Step 5: Solve for x
    x = 22,508,434.04/4,914.09
  6. Step 6: Final answer
    x = 4,580.39

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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.