Home / 2,027.40-2,799.36-1,781.64

Finding the Fourth Proportional to 2,027.40, 2,799.36 and 1,781.64

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Solution

The fourth proportional to 2,027.40, 2,799.36 and 1,781.64 is: 2,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.40 : 2,799.36 = 1,781.64 : x
  2. Step 2: Convert to fraction form
    2,027.40/2,799.36 = 1,781.64/x
  3. Step 3: Cross multiply
    2,027.40x = 2,799.36 × 1,781.64
  4. Step 4: Simplify right side
    2,027.40x = 4,987,451.75
  5. Step 5: Solve for x
    x = 4,987,451.75/2,027.40
  6. Step 6: Final answer
    x = 2,460.02

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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.