Home / 1,984.98-2,739.27-1,229.10

Finding the Fourth Proportional to 1,984.98, 2,739.27 and 1,229.10

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Solution

The fourth proportional to 1,984.98, 2,739.27 and 1,229.10 is: 1,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.98 : 2,739.27 = 1,229.10 : x
  2. Step 2: Convert to fraction form
    1,984.98/2,739.27 = 1,229.10/x
  3. Step 3: Cross multiply
    1,984.98x = 2,739.27 × 1,229.10
  4. Step 4: Simplify right side
    1,984.98x = 3,366,836.76
  5. Step 5: Solve for x
    x = 3,366,836.76/1,984.98
  6. Step 6: Final answer
    x = 1,696.16

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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.