Home / 3,612.12-4,984.62-2,120.10

Finding the Fourth Proportional to 3,612.12, 4,984.62 and 2,120.10

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Solution

The fourth proportional to 3,612.12, 4,984.62 and 2,120.10 is: 2,925.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.12 : 4,984.62 = 2,120.10 : x
  2. Step 2: Convert to fraction form
    3,612.12/4,984.62 = 2,120.10/x
  3. Step 3: Cross multiply
    3,612.12x = 4,984.62 × 2,120.10
  4. Step 4: Simplify right side
    3,612.12x = 10,567,892.86
  5. Step 5: Solve for x
    x = 10,567,892.86/3,612.12
  6. Step 6: Final answer
    x = 2,925.68

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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.