Home / 1,319.26-1,976.55-625.18

Finding the Fourth Proportional to 1,319.26, 1,976.55 and 625.18

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Solution

The fourth proportional to 1,319.26, 1,976.55 and 625.18 is: 936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319.26 : 1,976.55 = 625.18 : x
  2. Step 2: Convert to fraction form
    1,319.26/1,976.55 = 625.18/x
  3. Step 3: Cross multiply
    1,319.26x = 1,976.55 × 625.18
  4. Step 4: Simplify right side
    1,319.26x = 1,235,699.53
  5. Step 5: Solve for x
    x = 1,235,699.53/1,319.26
  6. Step 6: Final answer
    x = 936.66

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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.