Home / 3,210.56-4,815.32-1,018.79

Finding the Fourth Proportional to 3,210.56, 4,815.32 and 1,018.79

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Solution

The fourth proportional to 3,210.56, 4,815.32 and 1,018.79 is: 1,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.56 : 4,815.32 = 1,018.79 : x
  2. Step 2: Convert to fraction form
    3,210.56/4,815.32 = 1,018.79/x
  3. Step 3: Cross multiply
    3,210.56x = 4,815.32 × 1,018.79
  4. Step 4: Simplify right side
    3,210.56x = 4,905,799.86
  5. Step 5: Solve for x
    x = 4,905,799.86/3,210.56
  6. Step 6: Final answer
    x = 1,528.02

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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.