Home / 5,120.12-7,063.98-3,023.48

Finding the Fourth Proportional to 5,120.12, 7,063.98 and 3,023.48

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Solution

The fourth proportional to 5,120.12, 7,063.98 and 3,023.48 is: 4,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.12 : 7,063.98 = 3,023.48 : x
  2. Step 2: Convert to fraction form
    5,120.12/7,063.98 = 3,023.48/x
  3. Step 3: Cross multiply
    5,120.12x = 7,063.98 × 3,023.48
  4. Step 4: Simplify right side
    5,120.12x = 21,357,802.25
  5. Step 5: Solve for x
    x = 21,357,802.25/5,120.12
  6. Step 6: Final answer
    x = 4,171.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.