Home / 5,173.40-7,747.75-2,829.90

Finding the Fourth Proportional to 5,173.40, 7,747.75 and 2,829.90

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Solution

The fourth proportional to 5,173.40, 7,747.75 and 2,829.90 is: 4,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.40 : 7,747.75 = 2,829.90 : x
  2. Step 2: Convert to fraction form
    5,173.40/7,747.75 = 2,829.90/x
  3. Step 3: Cross multiply
    5,173.40x = 7,747.75 × 2,829.90
  4. Step 4: Simplify right side
    5,173.40x = 21,925,390.32
  5. Step 5: Solve for x
    x = 21,925,390.32/5,173.40
  6. Step 6: Final answer
    x = 4,238.10

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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.