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Finding the Fourth Proportional to 3,015.88, 4,523.40 and 937.30

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Solution

The fourth proportional to 3,015.88, 4,523.40 and 937.30 is: 1,405.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.88 : 4,523.40 = 937.30 : x
  2. Step 2: Convert to fraction form
    3,015.88/4,523.40 = 937.30/x
  3. Step 3: Cross multiply
    3,015.88x = 4,523.40 × 937.30
  4. Step 4: Simplify right side
    3,015.88x = 4,239,782.82
  5. Step 5: Solve for x
    x = 4,239,782.82/3,015.88
  6. Step 6: Final answer
    x = 1,405.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.