Home / 5,144.18-7,098.90-2,786.31

Finding the Fourth Proportional to 5,144.18, 7,098.90 and 2,786.31

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Solution

The fourth proportional to 5,144.18, 7,098.90 and 2,786.31 is: 3,845.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.18 : 7,098.90 = 2,786.31 : x
  2. Step 2: Convert to fraction form
    5,144.18/7,098.90 = 2,786.31/x
  3. Step 3: Cross multiply
    5,144.18x = 7,098.90 × 2,786.31
  4. Step 4: Simplify right side
    5,144.18x = 19,779,736.06
  5. Step 5: Solve for x
    x = 19,779,736.06/5,144.18
  6. Step 6: Final answer
    x = 3,845.07

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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.