Home / 4,189.10-6,281.07-1,415.51

Finding the Fourth Proportional to 4,189.10, 6,281.07 and 1,415.51

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Solution

The fourth proportional to 4,189.10, 6,281.07 and 1,415.51 is: 2,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.10 : 6,281.07 = 1,415.51 : x
  2. Step 2: Convert to fraction form
    4,189.10/6,281.07 = 1,415.51/x
  3. Step 3: Cross multiply
    4,189.10x = 6,281.07 × 1,415.51
  4. Step 4: Simplify right side
    4,189.10x = 8,890,917.40
  5. Step 5: Solve for x
    x = 8,890,917.40/4,189.10
  6. Step 6: Final answer
    x = 2,122.39

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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.