Home / 1,624.26-2,435.78-1,281.63

Finding the Fourth Proportional to 1,624.26, 2,435.78 and 1,281.63

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Solution

The fourth proportional to 1,624.26, 2,435.78 and 1,281.63 is: 1,921.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.26 : 2,435.78 = 1,281.63 : x
  2. Step 2: Convert to fraction form
    1,624.26/2,435.78 = 1,281.63/x
  3. Step 3: Cross multiply
    1,624.26x = 2,435.78 × 1,281.63
  4. Step 4: Simplify right side
    1,624.26x = 3,121,768.72
  5. Step 5: Solve for x
    x = 3,121,768.72/1,624.26
  6. Step 6: Final answer
    x = 1,921.96

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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.