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Finding the Fourth Proportional to 4,490.77, 6,736.16 and 1,412.77

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Solution

The fourth proportional to 4,490.77, 6,736.16 and 1,412.77 is: 2,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.77 : 6,736.16 = 1,412.77 : x
  2. Step 2: Convert to fraction form
    4,490.77/6,736.16 = 1,412.77/x
  3. Step 3: Cross multiply
    4,490.77x = 6,736.16 × 1,412.77
  4. Step 4: Simplify right side
    4,490.77x = 9,516,620.86
  5. Step 5: Solve for x
    x = 9,516,620.86/4,490.77
  6. Step 6: Final answer
    x = 2,119.15

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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.