Home / 4,911.12-7,366.70-1,989.48

Finding the Fourth Proportional to 4,911.12, 7,366.70 and 1,989.48

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Solution

The fourth proportional to 4,911.12, 7,366.70 and 1,989.48 is: 2,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.12 : 7,366.70 = 1,989.48 : x
  2. Step 2: Convert to fraction form
    4,911.12/7,366.70 = 1,989.48/x
  3. Step 3: Cross multiply
    4,911.12x = 7,366.70 × 1,989.48
  4. Step 4: Simplify right side
    4,911.12x = 14,655,902.32
  5. Step 5: Solve for x
    x = 14,655,902.32/4,911.12
  6. Step 6: Final answer
    x = 2,984.23

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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.