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Finding the Fourth Proportional to 4,247, 5,861.20 and 2,358.76

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Solution

The fourth proportional to 4,247, 5,861.20 and 2,358.76 is: 3,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247 : 5,861.20 = 2,358.76 : x
  2. Step 2: Convert to fraction form
    4,247/5,861.20 = 2,358.76/x
  3. Step 3: Cross multiply
    4,247x = 5,861.20 × 2,358.76
  4. Step 4: Simplify right side
    4,247x = 13,825,164.11
  5. Step 5: Solve for x
    x = 13,825,164.11/4,247
  6. Step 6: Final answer
    x = 3,255.28

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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.