Home / 7,181.28-9,909.75-4,037.25

Finding the Fourth Proportional to 7,181.28, 9,909.75 and 4,037.25

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Solution

The fourth proportional to 7,181.28, 9,909.75 and 4,037.25 is: 5,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.28 : 9,909.75 = 4,037.25 : x
  2. Step 2: Convert to fraction form
    7,181.28/9,909.75 = 4,037.25/x
  3. Step 3: Cross multiply
    7,181.28x = 9,909.75 × 4,037.25
  4. Step 4: Simplify right side
    7,181.28x = 40,008,138.19
  5. Step 5: Solve for x
    x = 40,008,138.19/7,181.28
  6. Step 6: Final answer
    x = 5,571.17

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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.