Home / 5,261.56-7,887.78-2,486.80

Finding the Fourth Proportional to 5,261.56, 7,887.78 and 2,486.80

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Solution

The fourth proportional to 5,261.56, 7,887.78 and 2,486.80 is: 3,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.56 : 7,887.78 = 2,486.80 : x
  2. Step 2: Convert to fraction form
    5,261.56/7,887.78 = 2,486.80/x
  3. Step 3: Cross multiply
    5,261.56x = 7,887.78 × 2,486.80
  4. Step 4: Simplify right side
    5,261.56x = 19,615,341.16
  5. Step 5: Solve for x
    x = 19,615,341.16/5,261.56
  6. Step 6: Final answer
    x = 3,728.05

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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.