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Finding the Fourth Proportional to 4,305.81, 5,945.75 and 2,715.30

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Solution

The fourth proportional to 4,305.81, 5,945.75 and 2,715.30 is: 3,749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.81 : 5,945.75 = 2,715.30 : x
  2. Step 2: Convert to fraction form
    4,305.81/5,945.75 = 2,715.30/x
  3. Step 3: Cross multiply
    4,305.81x = 5,945.75 × 2,715.30
  4. Step 4: Simplify right side
    4,305.81x = 16,144,490.13
  5. Step 5: Solve for x
    x = 16,144,490.13/4,305.81
  6. Step 6: Final answer
    x = 3,749.47

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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.