Home / 5,276.66-7,281.74-2,886.58

Finding the Fourth Proportional to 5,276.66, 7,281.74 and 2,886.58

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Solution

The fourth proportional to 5,276.66, 7,281.74 and 2,886.58 is: 3,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.66 : 7,281.74 = 2,886.58 : x
  2. Step 2: Convert to fraction form
    5,276.66/7,281.74 = 2,886.58/x
  3. Step 3: Cross multiply
    5,276.66x = 7,281.74 × 2,886.58
  4. Step 4: Simplify right side
    5,276.66x = 21,019,274.21
  5. Step 5: Solve for x
    x = 21,019,274.21/5,276.66
  6. Step 6: Final answer
    x = 3,983.44

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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.