Home / 5,140.55-7,093.96-2,782.68

Finding the Fourth Proportional to 5,140.55, 7,093.96 and 2,782.68

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Solution

The fourth proportional to 5,140.55, 7,093.96 and 2,782.68 is: 3,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.55 : 7,093.96 = 2,782.68 : x
  2. Step 2: Convert to fraction form
    5,140.55/7,093.96 = 2,782.68/x
  3. Step 3: Cross multiply
    5,140.55x = 7,093.96 × 2,782.68
  4. Step 4: Simplify right side
    5,140.55x = 19,740,213.66
  5. Step 5: Solve for x
    x = 19,740,213.66/5,140.55
  6. Step 6: Final answer
    x = 3,840.10

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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.