Home / 2,749.95-4,120.59-2,126.77

Finding the Fourth Proportional to 2,749.95, 4,120.59 and 2,126.77

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Solution

The fourth proportional to 2,749.95, 4,120.59 and 2,126.77 is: 3,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.95 : 4,120.59 = 2,126.77 : x
  2. Step 2: Convert to fraction form
    2,749.95/4,120.59 = 2,126.77/x
  3. Step 3: Cross multiply
    2,749.95x = 4,120.59 × 2,126.77
  4. Step 4: Simplify right side
    2,749.95x = 8,763,526.59
  5. Step 5: Solve for x
    x = 8,763,526.59/2,749.95
  6. Step 6: Final answer
    x = 3,186.80

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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.