Home / 3,008.75-4,152.20-1,682.45

Finding the Fourth Proportional to 3,008.75, 4,152.20 and 1,682.45

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Solution

The fourth proportional to 3,008.75, 4,152.20 and 1,682.45 is: 2,321.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.75 : 4,152.20 = 1,682.45 : x
  2. Step 2: Convert to fraction form
    3,008.75/4,152.20 = 1,682.45/x
  3. Step 3: Cross multiply
    3,008.75x = 4,152.20 × 1,682.45
  4. Step 4: Simplify right side
    3,008.75x = 6,985,868.89
  5. Step 5: Solve for x
    x = 6,985,868.89/3,008.75
  6. Step 6: Final answer
    x = 2,321.85

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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.