Home / 2,771.61-4,135.55-2,708.59

Finding the Fourth Proportional to 2,771.61, 4,135.55 and 2,708.59

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Solution

The fourth proportional to 2,771.61, 4,135.55 and 2,708.59 is: 4,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.61 : 4,135.55 = 2,708.59 : x
  2. Step 2: Convert to fraction form
    2,771.61/4,135.55 = 2,708.59/x
  3. Step 3: Cross multiply
    2,771.61x = 4,135.55 × 2,708.59
  4. Step 4: Simplify right side
    2,771.61x = 11,201,475.15
  5. Step 5: Solve for x
    x = 11,201,475.15/2,771.61
  6. Step 6: Final answer
    x = 4,041.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.