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Finding the Fourth Proportional to 4,989.06, 7,485.06 and 1,479.17

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Solution

The fourth proportional to 4,989.06, 7,485.06 and 1,479.17 is: 2,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.06 : 7,485.06 = 1,479.17 : x
  2. Step 2: Convert to fraction form
    4,989.06/7,485.06 = 1,479.17/x
  3. Step 3: Cross multiply
    4,989.06x = 7,485.06 × 1,479.17
  4. Step 4: Simplify right side
    4,989.06x = 11,071,679.41
  5. Step 5: Solve for x
    x = 11,071,679.41/4,989.06
  6. Step 6: Final answer
    x = 2,219.19

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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.