Home / 4,788.59-7,182.32-1,278.86

Finding the Fourth Proportional to 4,788.59, 7,182.32 and 1,278.86

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Solution

The fourth proportional to 4,788.59, 7,182.32 and 1,278.86 is: 1,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.59 : 7,182.32 = 1,278.86 : x
  2. Step 2: Convert to fraction form
    4,788.59/7,182.32 = 1,278.86/x
  3. Step 3: Cross multiply
    4,788.59x = 7,182.32 × 1,278.86
  4. Step 4: Simplify right side
    4,788.59x = 9,185,181.76
  5. Step 5: Solve for x
    x = 9,185,181.76/4,788.59
  6. Step 6: Final answer
    x = 1,918.14

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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.