Home / 5,181.50-7,773.48-1,718.75

Finding the Fourth Proportional to 5,181.50, 7,773.48 and 1,718.75

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Solution

The fourth proportional to 5,181.50, 7,773.48 and 1,718.75 is: 2,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.50 : 7,773.48 = 1,718.75 : x
  2. Step 2: Convert to fraction form
    5,181.50/7,773.48 = 1,718.75/x
  3. Step 3: Cross multiply
    5,181.50x = 7,773.48 × 1,718.75
  4. Step 4: Simplify right side
    5,181.50x = 13,360,668.75
  5. Step 5: Solve for x
    x = 13,360,668.75/5,181.50
  6. Step 6: Final answer
    x = 2,578.53

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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.