Home / 5,276.96-7,281.96-2,886.87

Finding the Fourth Proportional to 5,276.96, 7,281.96 and 2,886.87

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Solution

The fourth proportional to 5,276.96, 7,281.96 and 2,886.87 is: 3,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.96 : 7,281.96 = 2,886.87 : x
  2. Step 2: Convert to fraction form
    5,276.96/7,281.96 = 2,886.87/x
  3. Step 3: Cross multiply
    5,276.96x = 7,281.96 × 2,886.87
  4. Step 4: Simplify right side
    5,276.96x = 21,022,071.87
  5. Step 5: Solve for x
    x = 21,022,071.87/5,276.96
  6. Step 6: Final answer
    x = 3,983.75

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1.5x scale

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.