Home / 2,785.03-4,168.32-1,684.02

Finding the Fourth Proportional to 2,785.03, 4,168.32 and 1,684.02

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Solution

The fourth proportional to 2,785.03, 4,168.32 and 1,684.02 is: 2,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.03 : 4,168.32 = 1,684.02 : x
  2. Step 2: Convert to fraction form
    2,785.03/4,168.32 = 1,684.02/x
  3. Step 3: Cross multiply
    2,785.03x = 4,168.32 × 1,684.02
  4. Step 4: Simplify right side
    2,785.03x = 7,019,534.25
  5. Step 5: Solve for x
    x = 7,019,534.25/2,785.03
  6. Step 6: Final answer
    x = 2,520.45

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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.