Home / 1,317.83-1,976.09-701.36

Finding the Fourth Proportional to 1,317.83, 1,976.09 and 701.36

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Solution

The fourth proportional to 1,317.83, 1,976.09 and 701.36 is: 1,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.83 : 1,976.09 = 701.36 : x
  2. Step 2: Convert to fraction form
    1,317.83/1,976.09 = 701.36/x
  3. Step 3: Cross multiply
    1,317.83x = 1,976.09 × 701.36
  4. Step 4: Simplify right side
    1,317.83x = 1,385,951.92
  5. Step 5: Solve for x
    x = 1,385,951.92/1,317.83
  6. Step 6: Final answer
    x = 1,051.70

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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.