Home / 3,438.45-5,157.41-2,621.16

Finding the Fourth Proportional to 3,438.45, 5,157.41 and 2,621.16

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Solution

The fourth proportional to 3,438.45, 5,157.41 and 2,621.16 is: 3,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.45 : 5,157.41 = 2,621.16 : x
  2. Step 2: Convert to fraction form
    3,438.45/5,157.41 = 2,621.16/x
  3. Step 3: Cross multiply
    3,438.45x = 5,157.41 × 2,621.16
  4. Step 4: Simplify right side
    3,438.45x = 13,518,383.69
  5. Step 5: Solve for x
    x = 13,518,383.69/3,438.45
  6. Step 6: Final answer
    x = 3,931.53

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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.