Home / 5,357.46-7,392.88-2,999.28

Finding the Fourth Proportional to 5,357.46, 7,392.88 and 2,999.28

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Solution

The fourth proportional to 5,357.46, 7,392.88 and 2,999.28 is: 4,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.46 : 7,392.88 = 2,999.28 : x
  2. Step 2: Convert to fraction form
    5,357.46/7,392.88 = 2,999.28/x
  3. Step 3: Cross multiply
    5,357.46x = 7,392.88 × 2,999.28
  4. Step 4: Simplify right side
    5,357.46x = 22,173,265.17
  5. Step 5: Solve for x
    x = 22,173,265.17/5,357.46
  6. Step 6: Final answer
    x = 4,138.77

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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.