Home / 3,612.18-4,984.63-2,120.03

Finding the Fourth Proportional to 3,612.18, 4,984.63 and 2,120.03

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Solution

The fourth proportional to 3,612.18, 4,984.63 and 2,120.03 is: 2,925.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.18 : 4,984.63 = 2,120.03 : x
  2. Step 2: Convert to fraction form
    3,612.18/4,984.63 = 2,120.03/x
  3. Step 3: Cross multiply
    3,612.18x = 4,984.63 × 2,120.03
  4. Step 4: Simplify right side
    3,612.18x = 10,567,565.14
  5. Step 5: Solve for x
    x = 10,567,565.14/3,612.18
  6. Step 6: Final answer
    x = 2,925.54

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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.