Home / 3,210.60-4,815.49-1,019.35

Finding the Fourth Proportional to 3,210.60, 4,815.49 and 1,019.35

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Solution

The fourth proportional to 3,210.60, 4,815.49 and 1,019.35 is: 1,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.60 : 4,815.49 = 1,019.35 : x
  2. Step 2: Convert to fraction form
    3,210.60/4,815.49 = 1,019.35/x
  3. Step 3: Cross multiply
    3,210.60x = 4,815.49 × 1,019.35
  4. Step 4: Simplify right side
    3,210.60x = 4,908,669.73
  5. Step 5: Solve for x
    x = 4,908,669.73/3,210.60
  6. Step 6: Final answer
    x = 1,528.89

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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.