Home / 4,812.45-7,219.05-1,852.32

Finding the Fourth Proportional to 4,812.45, 7,219.05 and 1,852.32

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Solution

The fourth proportional to 4,812.45, 7,219.05 and 1,852.32 is: 2,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.45 : 7,219.05 = 1,852.32 : x
  2. Step 2: Convert to fraction form
    4,812.45/7,219.05 = 1,852.32/x
  3. Step 3: Cross multiply
    4,812.45x = 7,219.05 × 1,852.32
  4. Step 4: Simplify right side
    4,812.45x = 13,371,990.70
  5. Step 5: Solve for x
    x = 13,371,990.70/4,812.45
  6. Step 6: Final answer
    x = 2,778.62

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1.5x scale

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.