Home / 4,878.89-7,318.35-1,181.11

Finding the Fourth Proportional to 4,878.89, 7,318.35 and 1,181.11

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Solution

The fourth proportional to 4,878.89, 7,318.35 and 1,181.11 is: 1,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.89 : 7,318.35 = 1,181.11 : x
  2. Step 2: Convert to fraction form
    4,878.89/7,318.35 = 1,181.11/x
  3. Step 3: Cross multiply
    4,878.89x = 7,318.35 × 1,181.11
  4. Step 4: Simplify right side
    4,878.89x = 8,643,768.47
  5. Step 5: Solve for x
    x = 8,643,768.47/4,878.89
  6. Step 6: Final answer
    x = 1,771.67

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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.