Home / 5,315.79-7,971.24-1,617.26

Finding the Fourth Proportional to 5,315.79, 7,971.24 and 1,617.26

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Solution

The fourth proportional to 5,315.79, 7,971.24 and 1,617.26 is: 2,425.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.79 : 7,971.24 = 1,617.26 : x
  2. Step 2: Convert to fraction form
    5,315.79/7,971.24 = 1,617.26/x
  3. Step 3: Cross multiply
    5,315.79x = 7,971.24 × 1,617.26
  4. Step 4: Simplify right side
    5,315.79x = 12,891,527.75
  5. Step 5: Solve for x
    x = 12,891,527.75/5,315.79
  6. Step 6: Final answer
    x = 2,425.14

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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.