Home / 3,021.72-4,170.02-1,826.55

Finding the Fourth Proportional to 3,021.72, 4,170.02 and 1,826.55

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Solution

The fourth proportional to 3,021.72, 4,170.02 and 1,826.55 is: 2,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.72 : 4,170.02 = 1,826.55 : x
  2. Step 2: Convert to fraction form
    3,021.72/4,170.02 = 1,826.55/x
  3. Step 3: Cross multiply
    3,021.72x = 4,170.02 × 1,826.55
  4. Step 4: Simplify right side
    3,021.72x = 7,616,740.90
  5. Step 5: Solve for x
    x = 7,616,740.90/3,021.72
  6. Step 6: Final answer
    x = 2,520.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.