Home / 3,612.10-5,405.55-2,152.30

Finding the Fourth Proportional to 3,612.10, 5,405.55 and 2,152.30

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Solution

The fourth proportional to 3,612.10, 5,405.55 and 2,152.30 is: 3,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.10 : 5,405.55 = 2,152.30 : x
  2. Step 2: Convert to fraction form
    3,612.10/5,405.55 = 2,152.30/x
  3. Step 3: Cross multiply
    3,612.10x = 5,405.55 × 2,152.30
  4. Step 4: Simplify right side
    3,612.10x = 11,634,365.27
  5. Step 5: Solve for x
    x = 11,634,365.27/3,612.10
  6. Step 6: Final answer
    x = 3,220.94

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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.