Home / 5,099.84-7,648.32-1,811.15

Finding the Fourth Proportional to 5,099.84, 7,648.32 and 1,811.15

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Solution

The fourth proportional to 5,099.84, 7,648.32 and 1,811.15 is: 2,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.84 : 7,648.32 = 1,811.15 : x
  2. Step 2: Convert to fraction form
    5,099.84/7,648.32 = 1,811.15/x
  3. Step 3: Cross multiply
    5,099.84x = 7,648.32 × 1,811.15
  4. Step 4: Simplify right side
    5,099.84x = 13,852,254.77
  5. Step 5: Solve for x
    x = 13,852,254.77/5,099.84
  6. Step 6: Final answer
    x = 2,716.21

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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.