Home / 5,122.65-7,683.96-1,612.95

Finding the Fourth Proportional to 5,122.65, 7,683.96 and 1,612.95

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Solution

The fourth proportional to 5,122.65, 7,683.96 and 1,612.95 is: 2,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.65 : 7,683.96 = 1,612.95 : x
  2. Step 2: Convert to fraction form
    5,122.65/7,683.96 = 1,612.95/x
  3. Step 3: Cross multiply
    5,122.65x = 7,683.96 × 1,612.95
  4. Step 4: Simplify right side
    5,122.65x = 12,393,852.93
  5. Step 5: Solve for x
    x = 12,393,852.93/5,122.65
  6. Step 6: Final answer
    x = 2,419.42

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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.