Home / 5,699.13-7,864.78-3,181.09

Finding the Fourth Proportional to 5,699.13, 7,864.78 and 3,181.09

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Solution

The fourth proportional to 5,699.13, 7,864.78 and 3,181.09 is: 4,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,699.13 : 7,864.78 = 3,181.09 : x
  2. Step 2: Convert to fraction form
    5,699.13/7,864.78 = 3,181.09/x
  3. Step 3: Cross multiply
    5,699.13x = 7,864.78 × 3,181.09
  4. Step 4: Simplify right side
    5,699.13x = 25,018,573.01
  5. Step 5: Solve for x
    x = 25,018,573.01/5,699.13
  6. Step 6: Final answer
    x = 4,389.89

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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.