Home / 3,070.20-4,236.91-1,811.26

Finding the Fourth Proportional to 3,070.20, 4,236.91 and 1,811.26

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Solution

The fourth proportional to 3,070.20, 4,236.91 and 1,811.26 is: 2,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.20 : 4,236.91 = 1,811.26 : x
  2. Step 2: Convert to fraction form
    3,070.20/4,236.91 = 1,811.26/x
  3. Step 3: Cross multiply
    3,070.20x = 4,236.91 × 1,811.26
  4. Step 4: Simplify right side
    3,070.20x = 7,674,146.37
  5. Step 5: Solve for x
    x = 7,674,146.37/3,070.20
  6. Step 6: Final answer
    x = 2,499.56

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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.