Home / 3,209.40-4,815-1,018.08

Finding the Fourth Proportional to 3,209.40, 4,815 and 1,018.08

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Solution

The fourth proportional to 3,209.40, 4,815 and 1,018.08 is: 1,527.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.40 : 4,815 = 1,018.08 : x
  2. Step 2: Convert to fraction form
    3,209.40/4,815 = 1,018.08/x
  3. Step 3: Cross multiply
    3,209.40x = 4,815 × 1,018.08
  4. Step 4: Simplify right side
    3,209.40x = 4,902,055.20
  5. Step 5: Solve for x
    x = 4,902,055.20/3,209.40
  6. Step 6: Final answer
    x = 1,527.41

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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.