Home / 4,261.72-6,390.36-2,875

Finding the Fourth Proportional to 4,261.72, 6,390.36 and 2,875

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Solution

The fourth proportional to 4,261.72, 6,390.36 and 2,875 is: 4,311.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.72 : 6,390.36 = 2,875 : x
  2. Step 2: Convert to fraction form
    4,261.72/6,390.36 = 2,875/x
  3. Step 3: Cross multiply
    4,261.72x = 6,390.36 × 2,875
  4. Step 4: Simplify right side
    4,261.72x = 18,372,285
  5. Step 5: Solve for x
    x = 18,372,285/4,261.72
  6. Step 6: Final answer
    x = 4,311.00

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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.