Home / 2,259.60-3,118.62-1,375.74

Finding the Fourth Proportional to 2,259.60, 3,118.62 and 1,375.74

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Solution

The fourth proportional to 2,259.60, 3,118.62 and 1,375.74 is: 1,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.60 : 3,118.62 = 1,375.74 : x
  2. Step 2: Convert to fraction form
    2,259.60/3,118.62 = 1,375.74/x
  3. Step 3: Cross multiply
    2,259.60x = 3,118.62 × 1,375.74
  4. Step 4: Simplify right side
    2,259.60x = 4,290,410.28
  5. Step 5: Solve for x
    x = 4,290,410.28/2,259.60
  6. Step 6: Final answer
    x = 1,898.75

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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.