Home / 4,788.05-7,182.48-1,278.59

Finding the Fourth Proportional to 4,788.05, 7,182.48 and 1,278.59

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Solution

The fourth proportional to 4,788.05, 7,182.48 and 1,278.59 is: 1,917.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.05 : 7,182.48 = 1,278.59 : x
  2. Step 2: Convert to fraction form
    4,788.05/7,182.48 = 1,278.59/x
  3. Step 3: Cross multiply
    4,788.05x = 7,182.48 × 1,278.59
  4. Step 4: Simplify right side
    4,788.05x = 9,183,447.10
  5. Step 5: Solve for x
    x = 9,183,447.10/4,788.05
  6. Step 6: Final answer
    x = 1,917.99

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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.