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Finding the Fourth Proportional to 3,047.48, 4,571.38 and 856.03

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Solution

The fourth proportional to 3,047.48, 4,571.38 and 856.03 is: 1,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.48 : 4,571.38 = 856.03 : x
  2. Step 2: Convert to fraction form
    3,047.48/4,571.38 = 856.03/x
  3. Step 3: Cross multiply
    3,047.48x = 4,571.38 × 856.03
  4. Step 4: Simplify right side
    3,047.48x = 3,913,245.21
  5. Step 5: Solve for x
    x = 3,913,245.21/3,047.48
  6. Step 6: Final answer
    x = 1,284.09

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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.