Home / 2,334.64-3,222.18-1,390.48

Finding the Fourth Proportional to 2,334.64, 3,222.18 and 1,390.48

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Solution

The fourth proportional to 2,334.64, 3,222.18 and 1,390.48 is: 1,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.64 : 3,222.18 = 1,390.48 : x
  2. Step 2: Convert to fraction form
    2,334.64/3,222.18 = 1,390.48/x
  3. Step 3: Cross multiply
    2,334.64x = 3,222.18 × 1,390.48
  4. Step 4: Simplify right side
    2,334.64x = 4,480,353.78
  5. Step 5: Solve for x
    x = 4,480,353.78/2,334.64
  6. Step 6: Final answer
    x = 1,919.08

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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.