Home / 4,878.95-7,318.35-1,181.16

Finding the Fourth Proportional to 4,878.95, 7,318.35 and 1,181.16

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Solution

The fourth proportional to 4,878.95, 7,318.35 and 1,181.16 is: 1,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.95 : 7,318.35 = 1,181.16 : x
  2. Step 2: Convert to fraction form
    4,878.95/7,318.35 = 1,181.16/x
  3. Step 3: Cross multiply
    4,878.95x = 7,318.35 × 1,181.16
  4. Step 4: Simplify right side
    4,878.95x = 8,644,142.29
  5. Step 5: Solve for x
    x = 8,644,142.29/4,878.95
  6. Step 6: Final answer
    x = 1,771.72

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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.