Home / 4,951.80-7,428.48-1,664.15

Finding the Fourth Proportional to 4,951.80, 7,428.48 and 1,664.15

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Solution

The fourth proportional to 4,951.80, 7,428.48 and 1,664.15 is: 2,496.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.80 : 7,428.48 = 1,664.15 : x
  2. Step 2: Convert to fraction form
    4,951.80/7,428.48 = 1,664.15/x
  3. Step 3: Cross multiply
    4,951.80x = 7,428.48 × 1,664.15
  4. Step 4: Simplify right side
    4,951.80x = 12,362,061.61
  5. Step 5: Solve for x
    x = 12,362,061.61/4,951.80
  6. Step 6: Final answer
    x = 2,496.48

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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.