Home / 2,889.36-4,331.52-1,427.04

Finding the Fourth Proportional to 2,889.36, 4,331.52 and 1,427.04

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Solution

The fourth proportional to 2,889.36, 4,331.52 and 1,427.04 is: 2,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.36 : 4,331.52 = 1,427.04 : x
  2. Step 2: Convert to fraction form
    2,889.36/4,331.52 = 1,427.04/x
  3. Step 3: Cross multiply
    2,889.36x = 4,331.52 × 1,427.04
  4. Step 4: Simplify right side
    2,889.36x = 6,181,252.30
  5. Step 5: Solve for x
    x = 6,181,252.30/2,889.36
  6. Step 6: Final answer
    x = 2,139.32

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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.