Home / 3,615.40-5,424.12-1,018.36

Finding the Fourth Proportional to 3,615.40, 5,424.12 and 1,018.36

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Solution

The fourth proportional to 3,615.40, 5,424.12 and 1,018.36 is: 1,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.40 : 5,424.12 = 1,018.36 : x
  2. Step 2: Convert to fraction form
    3,615.40/5,424.12 = 1,018.36/x
  3. Step 3: Cross multiply
    3,615.40x = 5,424.12 × 1,018.36
  4. Step 4: Simplify right side
    3,615.40x = 5,523,706.84
  5. Step 5: Solve for x
    x = 5,523,706.84/3,615.40
  6. Step 6: Final answer
    x = 1,527.83

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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.