Home / 3,164.80-4,748.64-1,317.28

Finding the Fourth Proportional to 3,164.80, 4,748.64 and 1,317.28

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Solution

The fourth proportional to 3,164.80, 4,748.64 and 1,317.28 is: 1,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.80 : 4,748.64 = 1,317.28 : x
  2. Step 2: Convert to fraction form
    3,164.80/4,748.64 = 1,317.28/x
  3. Step 3: Cross multiply
    3,164.80x = 4,748.64 × 1,317.28
  4. Step 4: Simplify right side
    3,164.80x = 6,255,288.50
  5. Step 5: Solve for x
    x = 6,255,288.50/3,164.80
  6. Step 6: Final answer
    x = 1,976.52

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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.