Home / 3,900.74-5,853.40-1,435.75

Finding the Fourth Proportional to 3,900.74, 5,853.40 and 1,435.75

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Solution

The fourth proportional to 3,900.74, 5,853.40 and 1,435.75 is: 2,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.74 : 5,853.40 = 1,435.75 : x
  2. Step 2: Convert to fraction form
    3,900.74/5,853.40 = 1,435.75/x
  3. Step 3: Cross multiply
    3,900.74x = 5,853.40 × 1,435.75
  4. Step 4: Simplify right side
    3,900.74x = 8,404,000.83
  5. Step 5: Solve for x
    x = 8,404,000.83/3,900.74
  6. Step 6: Final answer
    x = 2,154.47

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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.