Home / 5,276.43-7,281.50-2,918.79

Finding the Fourth Proportional to 5,276.43, 7,281.50 and 2,918.79

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Solution

The fourth proportional to 5,276.43, 7,281.50 and 2,918.79 is: 4,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.43 : 7,281.50 = 2,918.79 : x
  2. Step 2: Convert to fraction form
    5,276.43/7,281.50 = 2,918.79/x
  3. Step 3: Cross multiply
    5,276.43x = 7,281.50 × 2,918.79
  4. Step 4: Simplify right side
    5,276.43x = 21,253,154.79
  5. Step 5: Solve for x
    x = 21,253,154.79/5,276.43
  6. Step 6: Final answer
    x = 4,027.94

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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.