Home / 7,880.96-11,822.26-3,499.40

Finding the Fourth Proportional to 7,880.96, 11,822.26 and 3,499.40

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Solution

The fourth proportional to 7,880.96, 11,822.26 and 3,499.40 is: 5,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.96 : 11,822.26 = 3,499.40 : x
  2. Step 2: Convert to fraction form
    7,880.96/11,822.26 = 3,499.40/x
  3. Step 3: Cross multiply
    7,880.96x = 11,822.26 × 3,499.40
  4. Step 4: Simplify right side
    7,880.96x = 41,370,816.64
  5. Step 5: Solve for x
    x = 41,370,816.64/7,880.96
  6. Step 6: Final answer
    x = 5,249.46

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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.