Home / 4,903.50-7,356.87-1,980.21

Finding the Fourth Proportional to 4,903.50, 7,356.87 and 1,980.21

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Solution

The fourth proportional to 4,903.50, 7,356.87 and 1,980.21 is: 2,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.50 : 7,356.87 = 1,980.21 : x
  2. Step 2: Convert to fraction form
    4,903.50/7,356.87 = 1,980.21/x
  3. Step 3: Cross multiply
    4,903.50x = 7,356.87 × 1,980.21
  4. Step 4: Simplify right side
    4,903.50x = 14,568,147.54
  5. Step 5: Solve for x
    x = 14,568,147.54/4,903.50
  6. Step 6: Final answer
    x = 2,970.97

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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.