Home / 4,629.15-6,930.09-2,980.80

Finding the Fourth Proportional to 4,629.15, 6,930.09 and 2,980.80

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Solution

The fourth proportional to 4,629.15, 6,930.09 and 2,980.80 is: 4,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.15 : 6,930.09 = 2,980.80 : x
  2. Step 2: Convert to fraction form
    4,629.15/6,930.09 = 2,980.80/x
  3. Step 3: Cross multiply
    4,629.15x = 6,930.09 × 2,980.80
  4. Step 4: Simplify right side
    4,629.15x = 20,657,212.27
  5. Step 5: Solve for x
    x = 20,657,212.27/4,629.15
  6. Step 6: Final answer
    x = 4,462.42

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1.5x scale

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.