Home / 5,076.80-7,000.62-3,485.78

Finding the Fourth Proportional to 5,076.80, 7,000.62 and 3,485.78

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Solution

The fourth proportional to 5,076.80, 7,000.62 and 3,485.78 is: 4,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.80 : 7,000.62 = 3,485.78 : x
  2. Step 2: Convert to fraction form
    5,076.80/7,000.62 = 3,485.78/x
  3. Step 3: Cross multiply
    5,076.80x = 7,000.62 × 3,485.78
  4. Step 4: Simplify right side
    5,076.80x = 24,402,621.18
  5. Step 5: Solve for x
    x = 24,402,621.18/5,076.80
  6. Step 6: Final answer
    x = 4,806.69

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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.