Home / 5,276.30-7,281.33-2,918.57

Finding the Fourth Proportional to 5,276.30, 7,281.33 and 2,918.57

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Solution

The fourth proportional to 5,276.30, 7,281.33 and 2,918.57 is: 4,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.30 : 7,281.33 = 2,918.57 : x
  2. Step 2: Convert to fraction form
    5,276.30/7,281.33 = 2,918.57/x
  3. Step 3: Cross multiply
    5,276.30x = 7,281.33 × 2,918.57
  4. Step 4: Simplify right side
    5,276.30x = 21,251,071.30
  5. Step 5: Solve for x
    x = 21,251,071.30/5,276.30
  6. Step 6: Final answer
    x = 4,027.65

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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.