Home / 2,674.19-4,008.62-1,287.13

Finding the Fourth Proportional to 2,674.19, 4,008.62 and 1,287.13

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Solution

The fourth proportional to 2,674.19, 4,008.62 and 1,287.13 is: 1,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.19 : 4,008.62 = 1,287.13 : x
  2. Step 2: Convert to fraction form
    2,674.19/4,008.62 = 1,287.13/x
  3. Step 3: Cross multiply
    2,674.19x = 4,008.62 × 1,287.13
  4. Step 4: Simplify right side
    2,674.19x = 5,159,608.62
  5. Step 5: Solve for x
    x = 5,159,608.62/2,674.19
  6. Step 6: Final answer
    x = 1,929.41

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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.