Home / 5,129.79-7,687.58-2,349.51

Finding the Fourth Proportional to 5,129.79, 7,687.58 and 2,349.51

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Solution

The fourth proportional to 5,129.79, 7,687.58 and 2,349.51 is: 3,521.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.79 : 7,687.58 = 2,349.51 : x
  2. Step 2: Convert to fraction form
    5,129.79/7,687.58 = 2,349.51/x
  3. Step 3: Cross multiply
    5,129.79x = 7,687.58 × 2,349.51
  4. Step 4: Simplify right side
    5,129.79x = 18,062,034.34
  5. Step 5: Solve for x
    x = 18,062,034.34/5,129.79
  6. Step 6: Final answer
    x = 3,521.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.