Home / 2,670.36-4,003.86-1,210.20

Finding the Fourth Proportional to 2,670.36, 4,003.86 and 1,210.20

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Solution

The fourth proportional to 2,670.36, 4,003.86 and 1,210.20 is: 1,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.36 : 4,003.86 = 1,210.20 : x
  2. Step 2: Convert to fraction form
    2,670.36/4,003.86 = 1,210.20/x
  3. Step 3: Cross multiply
    2,670.36x = 4,003.86 × 1,210.20
  4. Step 4: Simplify right side
    2,670.36x = 4,845,471.37
  5. Step 5: Solve for x
    x = 4,845,471.37/2,670.36
  6. Step 6: Final answer
    x = 1,814.54

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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.