Home / 5,181.39-7,772.10-1,718.64

Finding the Fourth Proportional to 5,181.39, 7,772.10 and 1,718.64

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Solution

The fourth proportional to 5,181.39, 7,772.10 and 1,718.64 is: 2,577.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.39 : 7,772.10 = 1,718.64 : x
  2. Step 2: Convert to fraction form
    5,181.39/7,772.10 = 1,718.64/x
  3. Step 3: Cross multiply
    5,181.39x = 7,772.10 × 1,718.64
  4. Step 4: Simplify right side
    5,181.39x = 13,357,441.94
  5. Step 5: Solve for x
    x = 13,357,441.94/5,181.39
  6. Step 6: Final answer
    x = 2,577.96

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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.