Home / 4,215.02-6,321.72-1,292.54

Finding the Fourth Proportional to 4,215.02, 6,321.72 and 1,292.54

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Solution

The fourth proportional to 4,215.02, 6,321.72 and 1,292.54 is: 1,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.02 : 6,321.72 = 1,292.54 : x
  2. Step 2: Convert to fraction form
    4,215.02/6,321.72 = 1,292.54/x
  3. Step 3: Cross multiply
    4,215.02x = 6,321.72 × 1,292.54
  4. Step 4: Simplify right side
    4,215.02x = 8,171,091.77
  5. Step 5: Solve for x
    x = 8,171,091.77/4,215.02
  6. Step 6: Final answer
    x = 1,938.56

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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.