Home / 5,276.97-7,281.92-2,886.47

Finding the Fourth Proportional to 5,276.97, 7,281.92 and 2,886.47

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Solution

The fourth proportional to 5,276.97, 7,281.92 and 2,886.47 is: 3,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.97 : 7,281.92 = 2,886.47 : x
  2. Step 2: Convert to fraction form
    5,276.97/7,281.92 = 2,886.47/x
  3. Step 3: Cross multiply
    5,276.97x = 7,281.92 × 2,886.47
  4. Step 4: Simplify right side
    5,276.97x = 21,019,014.43
  5. Step 5: Solve for x
    x = 21,019,014.43/5,276.97
  6. Step 6: Final answer
    x = 3,983.16

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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.