Home / 5,219.63-7,829.58-1,521.77

Finding the Fourth Proportional to 5,219.63, 7,829.58 and 1,521.77

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Solution

The fourth proportional to 5,219.63, 7,829.58 and 1,521.77 is: 2,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.63 : 7,829.58 = 1,521.77 : x
  2. Step 2: Convert to fraction form
    5,219.63/7,829.58 = 1,521.77/x
  3. Step 3: Cross multiply
    5,219.63x = 7,829.58 × 1,521.77
  4. Step 4: Simplify right side
    5,219.63x = 11,914,780.81
  5. Step 5: Solve for x
    x = 11,914,780.81/5,219.63
  6. Step 6: Final answer
    x = 2,282.69

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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.