Home / 2,829.03-3,904.86-1,989.93

Finding the Fourth Proportional to 2,829.03, 3,904.86 and 1,989.93

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Solution

The fourth proportional to 2,829.03, 3,904.86 and 1,989.93 is: 2,746.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.03 : 3,904.86 = 1,989.93 : x
  2. Step 2: Convert to fraction form
    2,829.03/3,904.86 = 1,989.93/x
  3. Step 3: Cross multiply
    2,829.03x = 3,904.86 × 1,989.93
  4. Step 4: Simplify right side
    2,829.03x = 7,770,398.06
  5. Step 5: Solve for x
    x = 7,770,398.06/2,829.03
  6. Step 6: Final answer
    x = 2,746.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.