Home / 3,149.48-4,722.38-1,068.80

Finding the Fourth Proportional to 3,149.48, 4,722.38 and 1,068.80

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Solution

The fourth proportional to 3,149.48, 4,722.38 and 1,068.80 is: 1,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.48 : 4,722.38 = 1,068.80 : x
  2. Step 2: Convert to fraction form
    3,149.48/4,722.38 = 1,068.80/x
  3. Step 3: Cross multiply
    3,149.48x = 4,722.38 × 1,068.80
  4. Step 4: Simplify right side
    3,149.48x = 5,047,279.74
  5. Step 5: Solve for x
    x = 5,047,279.74/3,149.48
  6. Step 6: Final answer
    x = 1,602.58

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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.