Home / 4,680.75-7,021.04-1,393.87

Finding the Fourth Proportional to 4,680.75, 7,021.04 and 1,393.87

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Solution

The fourth proportional to 4,680.75, 7,021.04 and 1,393.87 is: 2,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.75 : 7,021.04 = 1,393.87 : x
  2. Step 2: Convert to fraction form
    4,680.75/7,021.04 = 1,393.87/x
  3. Step 3: Cross multiply
    4,680.75x = 7,021.04 × 1,393.87
  4. Step 4: Simplify right side
    4,680.75x = 9,786,417.02
  5. Step 5: Solve for x
    x = 9,786,417.02/4,680.75
  6. Step 6: Final answer
    x = 2,090.78

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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.