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Finding the Fourth Proportional to 5,015.64, 6,922.74 and 4,781.28

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Solution

The fourth proportional to 5,015.64, 6,922.74 and 4,781.28 is: 6,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.64 : 6,922.74 = 4,781.28 : x
  2. Step 2: Convert to fraction form
    5,015.64/6,922.74 = 4,781.28/x
  3. Step 3: Cross multiply
    5,015.64x = 6,922.74 × 4,781.28
  4. Step 4: Simplify right side
    5,015.64x = 33,099,558.31
  5. Step 5: Solve for x
    x = 33,099,558.31/5,015.64
  6. Step 6: Final answer
    x = 6,599.27

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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.