Home / 5,279.93-7,284.74-3,011.28

Finding the Fourth Proportional to 5,279.93, 7,284.74 and 3,011.28

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Solution

The fourth proportional to 5,279.93, 7,284.74 and 3,011.28 is: 4,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.93 : 7,284.74 = 3,011.28 : x
  2. Step 2: Convert to fraction form
    5,279.93/7,284.74 = 3,011.28/x
  3. Step 3: Cross multiply
    5,279.93x = 7,284.74 × 3,011.28
  4. Step 4: Simplify right side
    5,279.93x = 21,936,349.49
  5. Step 5: Solve for x
    x = 21,936,349.49/5,279.93
  6. Step 6: Final answer
    x = 4,154.66

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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.