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Finding the Fourth Proportional to 4,615, 6,371.58 and 2,961.88

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Solution

The fourth proportional to 4,615, 6,371.58 and 2,961.88 is: 4,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615 : 6,371.58 = 2,961.88 : x
  2. Step 2: Convert to fraction form
    4,615/6,371.58 = 2,961.88/x
  3. Step 3: Cross multiply
    4,615x = 6,371.58 × 2,961.88
  4. Step 4: Simplify right side
    4,615x = 18,871,855.37
  5. Step 5: Solve for x
    x = 18,871,855.37/4,615
  6. Step 6: Final answer
    x = 4,089.24

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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.