Home / 3,621.16-4,995.51-2,129.05

Finding the Fourth Proportional to 3,621.16, 4,995.51 and 2,129.05

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Solution

The fourth proportional to 3,621.16, 4,995.51 and 2,129.05 is: 2,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.16 : 4,995.51 = 2,129.05 : x
  2. Step 2: Convert to fraction form
    3,621.16/4,995.51 = 2,129.05/x
  3. Step 3: Cross multiply
    3,621.16x = 4,995.51 × 2,129.05
  4. Step 4: Simplify right side
    3,621.16x = 10,635,690.57
  5. Step 5: Solve for x
    x = 10,635,690.57/3,621.16
  6. Step 6: Final answer
    x = 2,937.09

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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.