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Finding the Fourth Proportional to 3,015.72, 4,493.25 and 2,817

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Solution

The fourth proportional to 3,015.72, 4,493.25 and 2,817 is: 4,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.72 : 4,493.25 = 2,817 : x
  2. Step 2: Convert to fraction form
    3,015.72/4,493.25 = 2,817/x
  3. Step 3: Cross multiply
    3,015.72x = 4,493.25 × 2,817
  4. Step 4: Simplify right side
    3,015.72x = 12,657,485.25
  5. Step 5: Solve for x
    x = 12,657,485.25/3,015.72
  6. Step 6: Final answer
    x = 4,197.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.