Home / 2,507.85-3,762.63-1,122.15

Finding the Fourth Proportional to 2,507.85, 3,762.63 and 1,122.15

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Solution

The fourth proportional to 2,507.85, 3,762.63 and 1,122.15 is: 1,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.85 : 3,762.63 = 1,122.15 : x
  2. Step 2: Convert to fraction form
    2,507.85/3,762.63 = 1,122.15/x
  3. Step 3: Cross multiply
    2,507.85x = 3,762.63 × 1,122.15
  4. Step 4: Simplify right side
    2,507.85x = 4,222,235.25
  5. Step 5: Solve for x
    x = 4,222,235.25/2,507.85
  6. Step 6: Final answer
    x = 1,683.61

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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.