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Finding the Fourth Proportional to 4,251.72, 5,865.05 and 2,715.77

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Solution

The fourth proportional to 4,251.72, 5,865.05 and 2,715.77 is: 3,746.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.72 : 5,865.05 = 2,715.77 : x
  2. Step 2: Convert to fraction form
    4,251.72/5,865.05 = 2,715.77/x
  3. Step 3: Cross multiply
    4,251.72x = 5,865.05 × 2,715.77
  4. Step 4: Simplify right side
    4,251.72x = 15,928,148.29
  5. Step 5: Solve for x
    x = 15,928,148.29/4,251.72
  6. Step 6: Final answer
    x = 3,746.28

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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.