Home / 2,788.43-3,848.21-1,796.07

Finding the Fourth Proportional to 2,788.43, 3,848.21 and 1,796.07

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Solution

The fourth proportional to 2,788.43, 3,848.21 and 1,796.07 is: 2,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.43 : 3,848.21 = 1,796.07 : x
  2. Step 2: Convert to fraction form
    2,788.43/3,848.21 = 1,796.07/x
  3. Step 3: Cross multiply
    2,788.43x = 3,848.21 × 1,796.07
  4. Step 4: Simplify right side
    2,788.43x = 6,911,666.72
  5. Step 5: Solve for x
    x = 6,911,666.72/2,788.43
  6. Step 6: Final answer
    x = 2,478.70

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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.