Home / 4,219.36-6,327.60-1,445.28

Finding the Fourth Proportional to 4,219.36, 6,327.60 and 1,445.28

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Solution

The fourth proportional to 4,219.36, 6,327.60 and 1,445.28 is: 2,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.36 : 6,327.60 = 1,445.28 : x
  2. Step 2: Convert to fraction form
    4,219.36/6,327.60 = 1,445.28/x
  3. Step 3: Cross multiply
    4,219.36x = 6,327.60 × 1,445.28
  4. Step 4: Simplify right side
    4,219.36x = 9,145,153.73
  5. Step 5: Solve for x
    x = 9,145,153.73/4,219.36
  6. Step 6: Final answer
    x = 2,167.43

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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.