Home / 5,181.45-7,152.80-3,056.26

Finding the Fourth Proportional to 5,181.45, 7,152.80 and 3,056.26

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Solution

The fourth proportional to 5,181.45, 7,152.80 and 3,056.26 is: 4,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.45 : 7,152.80 = 3,056.26 : x
  2. Step 2: Convert to fraction form
    5,181.45/7,152.80 = 3,056.26/x
  3. Step 3: Cross multiply
    5,181.45x = 7,152.80 × 3,056.26
  4. Step 4: Simplify right side
    5,181.45x = 21,860,801.25
  5. Step 5: Solve for x
    x = 21,860,801.25/5,181.45
  6. Step 6: Final answer
    x = 4,219.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.