Home / 3,021.80-4,170.06-1,695.50

Finding the Fourth Proportional to 3,021.80, 4,170.06 and 1,695.50

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Solution

The fourth proportional to 3,021.80, 4,170.06 and 1,695.50 is: 2,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.80 : 4,170.06 = 1,695.50 : x
  2. Step 2: Convert to fraction form
    3,021.80/4,170.06 = 1,695.50/x
  3. Step 3: Cross multiply
    3,021.80x = 4,170.06 × 1,695.50
  4. Step 4: Simplify right side
    3,021.80x = 7,070,315.88
  5. Step 5: Solve for x
    x = 7,070,315.88/3,021.80
  6. Step 6: Final answer
    x = 2,339.77

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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.