Home / 4,267.28-5,889.60-3,389.78

Finding the Fourth Proportional to 4,267.28, 5,889.60 and 3,389.78

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Solution

The fourth proportional to 4,267.28, 5,889.60 and 3,389.78 is: 4,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.28 : 5,889.60 = 3,389.78 : x
  2. Step 2: Convert to fraction form
    4,267.28/5,889.60 = 3,389.78/x
  3. Step 3: Cross multiply
    4,267.28x = 5,889.60 × 3,389.78
  4. Step 4: Simplify right side
    4,267.28x = 19,964,448.29
  5. Step 5: Solve for x
    x = 19,964,448.29/4,267.28
  6. Step 6: Final answer
    x = 4,678.50

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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.