Home / 2,101.23-2,899.78-1,262

Finding the Fourth Proportional to 2,101.23, 2,899.78 and 1,262

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Solution

The fourth proportional to 2,101.23, 2,899.78 and 1,262 is: 1,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.23 : 2,899.78 = 1,262 : x
  2. Step 2: Convert to fraction form
    2,101.23/2,899.78 = 1,262/x
  3. Step 3: Cross multiply
    2,101.23x = 2,899.78 × 1,262
  4. Step 4: Simplify right side
    2,101.23x = 3,659,522.36
  5. Step 5: Solve for x
    x = 3,659,522.36/2,101.23
  6. Step 6: Final answer
    x = 1,741.61

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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.