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Finding the Fourth Proportional to 4,309.88, 5,945.76 and 2,715.56

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Solution

The fourth proportional to 4,309.88, 5,945.76 and 2,715.56 is: 3,746.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.88 : 5,945.76 = 2,715.56 : x
  2. Step 2: Convert to fraction form
    4,309.88/5,945.76 = 2,715.56/x
  3. Step 3: Cross multiply
    4,309.88x = 5,945.76 × 2,715.56
  4. Step 4: Simplify right side
    4,309.88x = 16,146,068.03
  5. Step 5: Solve for x
    x = 16,146,068.03/4,309.88
  6. Step 6: Final answer
    x = 3,746.29

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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.