Home / 1,317.08-1,975.67-343.16

Finding the Fourth Proportional to 1,317.08, 1,975.67 and 343.16

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Solution

The fourth proportional to 1,317.08, 1,975.67 and 343.16 is: 514.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.08 : 1,975.67 = 343.16 : x
  2. Step 2: Convert to fraction form
    1,317.08/1,975.67 = 343.16/x
  3. Step 3: Cross multiply
    1,317.08x = 1,975.67 × 343.16
  4. Step 4: Simplify right side
    1,317.08x = 677,970.92
  5. Step 5: Solve for x
    x = 677,970.92/1,317.08
  6. Step 6: Final answer
    x = 514.75

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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.