Home / 3,148.91-4,720.28-1,173.09

Finding the Fourth Proportional to 3,148.91, 4,720.28 and 1,173.09

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Solution

The fourth proportional to 3,148.91, 4,720.28 and 1,173.09 is: 1,758.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.91 : 4,720.28 = 1,173.09 : x
  2. Step 2: Convert to fraction form
    3,148.91/4,720.28 = 1,173.09/x
  3. Step 3: Cross multiply
    3,148.91x = 4,720.28 × 1,173.09
  4. Step 4: Simplify right side
    3,148.91x = 5,537,308.45
  5. Step 5: Solve for x
    x = 5,537,308.45/3,148.91
  6. Step 6: Final answer
    x = 1,758.49

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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.