Home / 5,219.32-7,829.71-1,521.81

Finding the Fourth Proportional to 5,219.32, 7,829.71 and 1,521.81

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Solution

The fourth proportional to 5,219.32, 7,829.71 and 1,521.81 is: 2,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.32 : 7,829.71 = 1,521.81 : x
  2. Step 2: Convert to fraction form
    5,219.32/7,829.71 = 1,521.81/x
  3. Step 3: Cross multiply
    5,219.32x = 7,829.71 × 1,521.81
  4. Step 4: Simplify right side
    5,219.32x = 11,915,330.98
  5. Step 5: Solve for x
    x = 11,915,330.98/5,219.32
  6. Step 6: Final answer
    x = 2,282.93

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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.