Home / 2,118.02-3,175.85-1,451.68

Finding the Fourth Proportional to 2,118.02, 3,175.85 and 1,451.68

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Solution

The fourth proportional to 2,118.02, 3,175.85 and 1,451.68 is: 2,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.02 : 3,175.85 = 1,451.68 : x
  2. Step 2: Convert to fraction form
    2,118.02/3,175.85 = 1,451.68/x
  3. Step 3: Cross multiply
    2,118.02x = 3,175.85 × 1,451.68
  4. Step 4: Simplify right side
    2,118.02x = 4,610,313.62
  5. Step 5: Solve for x
    x = 4,610,313.62/2,118.02
  6. Step 6: Final answer
    x = 2,176.71

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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.