Home / 1,845.77-2,548.09-1,217.21

Finding the Fourth Proportional to 1,845.77, 2,548.09 and 1,217.21

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Solution

The fourth proportional to 1,845.77, 2,548.09 and 1,217.21 is: 1,680.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.77 : 2,548.09 = 1,217.21 : x
  2. Step 2: Convert to fraction form
    1,845.77/2,548.09 = 1,217.21/x
  3. Step 3: Cross multiply
    1,845.77x = 2,548.09 × 1,217.21
  4. Step 4: Simplify right side
    1,845.77x = 3,101,560.63
  5. Step 5: Solve for x
    x = 3,101,560.63/1,845.77
  6. Step 6: Final answer
    x = 1,680.36

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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.