Home / 6,579.90-9,081.32-3,927.96

Finding the Fourth Proportional to 6,579.90, 9,081.32 and 3,927.96

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Solution

The fourth proportional to 6,579.90, 9,081.32 and 3,927.96 is: 5,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,579.90 : 9,081.32 = 3,927.96 : x
  2. Step 2: Convert to fraction form
    6,579.90/9,081.32 = 3,927.96/x
  3. Step 3: Cross multiply
    6,579.90x = 9,081.32 × 3,927.96
  4. Step 4: Simplify right side
    6,579.90x = 35,671,042.07
  5. Step 5: Solve for x
    x = 35,671,042.07/6,579.90
  6. Step 6: Final answer
    x = 5,421.21

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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.