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Finding the Fourth Proportional to 4,671, 7,006.44 and 1,208.20

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Solution

The fourth proportional to 4,671, 7,006.44 and 1,208.20 is: 1,812.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671 : 7,006.44 = 1,208.20 : x
  2. Step 2: Convert to fraction form
    4,671/7,006.44 = 1,208.20/x
  3. Step 3: Cross multiply
    4,671x = 7,006.44 × 1,208.20
  4. Step 4: Simplify right side
    4,671x = 8,465,180.81
  5. Step 5: Solve for x
    x = 8,465,180.81/4,671
  6. Step 6: Final answer
    x = 1,812.28

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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.