Home / 2,995.30-4,135.55-2,679.60

Finding the Fourth Proportional to 2,995.30, 4,135.55 and 2,679.60

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Solution

The fourth proportional to 2,995.30, 4,135.55 and 2,679.60 is: 3,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.30 : 4,135.55 = 2,679.60 : x
  2. Step 2: Convert to fraction form
    2,995.30/4,135.55 = 2,679.60/x
  3. Step 3: Cross multiply
    2,995.30x = 4,135.55 × 2,679.60
  4. Step 4: Simplify right side
    2,995.30x = 11,081,619.78
  5. Step 5: Solve for x
    x = 11,081,619.78/2,995.30
  6. Step 6: Final answer
    x = 3,699.67

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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.