Home / 2,259.72-3,388.46-1,439.64

Finding the Fourth Proportional to 2,259.72, 3,388.46 and 1,439.64

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Solution

The fourth proportional to 2,259.72, 3,388.46 and 1,439.64 is: 2,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.72 : 3,388.46 = 1,439.64 : x
  2. Step 2: Convert to fraction form
    2,259.72/3,388.46 = 1,439.64/x
  3. Step 3: Cross multiply
    2,259.72x = 3,388.46 × 1,439.64
  4. Step 4: Simplify right side
    2,259.72x = 4,878,155.36
  5. Step 5: Solve for x
    x = 4,878,155.36/2,259.72
  6. Step 6: Final answer
    x = 2,158.74

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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.