Home / 4,788.48-7,182.13-1,278.75

Finding the Fourth Proportional to 4,788.48, 7,182.13 and 1,278.75

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Solution

The fourth proportional to 4,788.48, 7,182.13 and 1,278.75 is: 1,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.48 : 7,182.13 = 1,278.75 : x
  2. Step 2: Convert to fraction form
    4,788.48/7,182.13 = 1,278.75/x
  3. Step 3: Cross multiply
    4,788.48x = 7,182.13 × 1,278.75
  4. Step 4: Simplify right side
    4,788.48x = 9,184,148.74
  5. Step 5: Solve for x
    x = 9,184,148.74/4,788.48
  6. Step 6: Final answer
    x = 1,917.97

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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.