Home / 3,746.20-5,619.30-1,148.80

Finding the Fourth Proportional to 3,746.20, 5,619.30 and 1,148.80

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Solution

The fourth proportional to 3,746.20, 5,619.30 and 1,148.80 is: 1,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.20 : 5,619.30 = 1,148.80 : x
  2. Step 2: Convert to fraction form
    3,746.20/5,619.30 = 1,148.80/x
  3. Step 3: Cross multiply
    3,746.20x = 5,619.30 × 1,148.80
  4. Step 4: Simplify right side
    3,746.20x = 6,455,451.84
  5. Step 5: Solve for x
    x = 6,455,451.84/3,746.20
  6. Step 6: Final answer
    x = 1,723.20

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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.