Home / 3,908.16-5,390.28-2,334.24

Finding the Fourth Proportional to 3,908.16, 5,390.28 and 2,334.24

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Solution

The fourth proportional to 3,908.16, 5,390.28 and 2,334.24 is: 3,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.16 : 5,390.28 = 2,334.24 : x
  2. Step 2: Convert to fraction form
    3,908.16/5,390.28 = 2,334.24/x
  3. Step 3: Cross multiply
    3,908.16x = 5,390.28 × 2,334.24
  4. Step 4: Simplify right side
    3,908.16x = 12,582,207.19
  5. Step 5: Solve for x
    x = 12,582,207.19/3,908.16
  6. Step 6: Final answer
    x = 3,219.47

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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.