Home / 3,210.36-4,815.90-1,019.76

Finding the Fourth Proportional to 3,210.36, 4,815.90 and 1,019.76

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Solution

The fourth proportional to 3,210.36, 4,815.90 and 1,019.76 is: 1,529.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.36 : 4,815.90 = 1,019.76 : x
  2. Step 2: Convert to fraction form
    3,210.36/4,815.90 = 1,019.76/x
  3. Step 3: Cross multiply
    3,210.36x = 4,815.90 × 1,019.76
  4. Step 4: Simplify right side
    3,210.36x = 4,911,062.18
  5. Step 5: Solve for x
    x = 4,911,062.18/3,210.36
  6. Step 6: Final answer
    x = 1,529.75

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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.