Home / 3,161.70-4,746.60-1,682.10

Finding the Fourth Proportional to 3,161.70, 4,746.60 and 1,682.10

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Solution

The fourth proportional to 3,161.70, 4,746.60 and 1,682.10 is: 2,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.70 : 4,746.60 = 1,682.10 : x
  2. Step 2: Convert to fraction form
    3,161.70/4,746.60 = 1,682.10/x
  3. Step 3: Cross multiply
    3,161.70x = 4,746.60 × 1,682.10
  4. Step 4: Simplify right side
    3,161.70x = 7,984,255.86
  5. Step 5: Solve for x
    x = 7,984,255.86/3,161.70
  6. Step 6: Final answer
    x = 2,525.30

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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.