Home / 3,210.41-4,815.79-1,019.31

Finding the Fourth Proportional to 3,210.41, 4,815.79 and 1,019.31

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Solution

The fourth proportional to 3,210.41, 4,815.79 and 1,019.31 is: 1,529.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.41 : 4,815.79 = 1,019.31 : x
  2. Step 2: Convert to fraction form
    3,210.41/4,815.79 = 1,019.31/x
  3. Step 3: Cross multiply
    3,210.41x = 4,815.79 × 1,019.31
  4. Step 4: Simplify right side
    3,210.41x = 4,908,753.73
  5. Step 5: Solve for x
    x = 4,908,753.73/3,210.41
  6. Step 6: Final answer
    x = 1,529.01

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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.