Home / 4,259.90-6,389.30-1,662.50

Finding the Fourth Proportional to 4,259.90, 6,389.30 and 1,662.50

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Solution

The fourth proportional to 4,259.90, 6,389.30 and 1,662.50 is: 2,493.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.90 : 6,389.30 = 1,662.50 : x
  2. Step 2: Convert to fraction form
    4,259.90/6,389.30 = 1,662.50/x
  3. Step 3: Cross multiply
    4,259.90x = 6,389.30 × 1,662.50
  4. Step 4: Simplify right side
    4,259.90x = 10,622,211.25
  5. Step 5: Solve for x
    x = 10,622,211.25/4,259.90
  6. Step 6: Final answer
    x = 2,493.54

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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.