Home / 2,455.23-3,683.30-812.93

Finding the Fourth Proportional to 2,455.23, 3,683.30 and 812.93

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Solution

The fourth proportional to 2,455.23, 3,683.30 and 812.93 is: 1,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.23 : 3,683.30 = 812.93 : x
  2. Step 2: Convert to fraction form
    2,455.23/3,683.30 = 812.93/x
  3. Step 3: Cross multiply
    2,455.23x = 3,683.30 × 812.93
  4. Step 4: Simplify right side
    2,455.23x = 2,994,265.07
  5. Step 5: Solve for x
    x = 2,994,265.07/2,455.23
  6. Step 6: Final answer
    x = 1,219.55

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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.