Home / 5,259.70-7,889.55-2,181.70

Finding the Fourth Proportional to 5,259.70, 7,889.55 and 2,181.70

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Solution

The fourth proportional to 5,259.70, 7,889.55 and 2,181.70 is: 3,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.70 : 7,889.55 = 2,181.70 : x
  2. Step 2: Convert to fraction form
    5,259.70/7,889.55 = 2,181.70/x
  3. Step 3: Cross multiply
    5,259.70x = 7,889.55 × 2,181.70
  4. Step 4: Simplify right side
    5,259.70x = 17,212,631.24
  5. Step 5: Solve for x
    x = 17,212,631.24/5,259.70
  6. Step 6: Final answer
    x = 3,272.55

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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.