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Finding the Fourth Proportional to 3,955.65, 5,936.39 and 1,875.65

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Solution

The fourth proportional to 3,955.65, 5,936.39 and 1,875.65 is: 2,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.65 : 5,936.39 = 1,875.65 : x
  2. Step 2: Convert to fraction form
    3,955.65/5,936.39 = 1,875.65/x
  3. Step 3: Cross multiply
    3,955.65x = 5,936.39 × 1,875.65
  4. Step 4: Simplify right side
    3,955.65x = 11,134,557.88
  5. Step 5: Solve for x
    x = 11,134,557.88/3,955.65
  6. Step 6: Final answer
    x = 2,814.85

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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.