Home / 3,114.23-4,295.88-1,977.80

Finding the Fourth Proportional to 3,114.23, 4,295.88 and 1,977.80

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Solution

The fourth proportional to 3,114.23, 4,295.88 and 1,977.80 is: 2,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.23 : 4,295.88 = 1,977.80 : x
  2. Step 2: Convert to fraction form
    3,114.23/4,295.88 = 1,977.80/x
  3. Step 3: Cross multiply
    3,114.23x = 4,295.88 × 1,977.80
  4. Step 4: Simplify right side
    3,114.23x = 8,496,369.98
  5. Step 5: Solve for x
    x = 8,496,369.98/3,114.23
  6. Step 6: Final answer
    x = 2,728.25

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1.5x scale

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.