Home / 2,727.51-4,088.80-1,245.21

Finding the Fourth Proportional to 2,727.51, 4,088.80 and 1,245.21

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Solution

The fourth proportional to 2,727.51, 4,088.80 and 1,245.21 is: 1,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.51 : 4,088.80 = 1,245.21 : x
  2. Step 2: Convert to fraction form
    2,727.51/4,088.80 = 1,245.21/x
  3. Step 3: Cross multiply
    2,727.51x = 4,088.80 × 1,245.21
  4. Step 4: Simplify right side
    2,727.51x = 5,091,414.65
  5. Step 5: Solve for x
    x = 5,091,414.65/2,727.51
  6. Step 6: Final answer
    x = 1,866.69

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1.5x scale

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.