Home / 3,762.23-5,642.33-1,129.32

Finding the Fourth Proportional to 3,762.23, 5,642.33 and 1,129.32

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Solution

The fourth proportional to 3,762.23, 5,642.33 and 1,129.32 is: 1,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.23 : 5,642.33 = 1,129.32 : x
  2. Step 2: Convert to fraction form
    3,762.23/5,642.33 = 1,129.32/x
  3. Step 3: Cross multiply
    3,762.23x = 5,642.33 × 1,129.32
  4. Step 4: Simplify right side
    3,762.23x = 6,371,990.47
  5. Step 5: Solve for x
    x = 6,371,990.47/3,762.23
  6. Step 6: Final answer
    x = 1,693.68

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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.