Home / 2,621.42-3,616.04-1,912.32

Finding the Fourth Proportional to 2,621.42, 3,616.04 and 1,912.32

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Solution

The fourth proportional to 2,621.42, 3,616.04 and 1,912.32 is: 2,637.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.42 : 3,616.04 = 1,912.32 : x
  2. Step 2: Convert to fraction form
    2,621.42/3,616.04 = 1,912.32/x
  3. Step 3: Cross multiply
    2,621.42x = 3,616.04 × 1,912.32
  4. Step 4: Simplify right side
    2,621.42x = 6,915,025.61
  5. Step 5: Solve for x
    x = 6,915,025.61/2,621.42
  6. Step 6: Final answer
    x = 2,637.89

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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.