Home / 2,771.34-4,155.98-1,126.99

Finding the Fourth Proportional to 2,771.34, 4,155.98 and 1,126.99

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Solution

The fourth proportional to 2,771.34, 4,155.98 and 1,126.99 is: 1,690.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.34 : 4,155.98 = 1,126.99 : x
  2. Step 2: Convert to fraction form
    2,771.34/4,155.98 = 1,126.99/x
  3. Step 3: Cross multiply
    2,771.34x = 4,155.98 × 1,126.99
  4. Step 4: Simplify right side
    2,771.34x = 4,683,745.28
  5. Step 5: Solve for x
    x = 4,683,745.28/2,771.34
  6. Step 6: Final answer
    x = 1,690.07

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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.