Home / 3,019.50-4,529.28-1,071.78

Finding the Fourth Proportional to 3,019.50, 4,529.28 and 1,071.78

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Solution

The fourth proportional to 3,019.50, 4,529.28 and 1,071.78 is: 1,607.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.50 : 4,529.28 = 1,071.78 : x
  2. Step 2: Convert to fraction form
    3,019.50/4,529.28 = 1,071.78/x
  3. Step 3: Cross multiply
    3,019.50x = 4,529.28 × 1,071.78
  4. Step 4: Simplify right side
    3,019.50x = 4,854,391.72
  5. Step 5: Solve for x
    x = 4,854,391.72/3,019.50
  6. Step 6: Final answer
    x = 1,607.68

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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.