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Finding the Fourth Proportional to 3,612.08, 4,984.20 and 2,018.54

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Solution

The fourth proportional to 3,612.08, 4,984.20 and 2,018.54 is: 2,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.08 : 4,984.20 = 2,018.54 : x
  2. Step 2: Convert to fraction form
    3,612.08/4,984.20 = 2,018.54/x
  3. Step 3: Cross multiply
    3,612.08x = 4,984.20 × 2,018.54
  4. Step 4: Simplify right side
    3,612.08x = 10,060,807.07
  5. Step 5: Solve for x
    x = 10,060,807.07/3,612.08
  6. Step 6: Final answer
    x = 2,785.32

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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.