Home / 2,797.43-3,860.57-1,678.16

Finding the Fourth Proportional to 2,797.43, 3,860.57 and 1,678.16

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Solution

The fourth proportional to 2,797.43, 3,860.57 and 1,678.16 is: 2,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.43 : 3,860.57 = 1,678.16 : x
  2. Step 2: Convert to fraction form
    2,797.43/3,860.57 = 1,678.16/x
  3. Step 3: Cross multiply
    2,797.43x = 3,860.57 × 1,678.16
  4. Step 4: Simplify right side
    2,797.43x = 6,478,668.00
  5. Step 5: Solve for x
    x = 6,478,668.00/2,797.43
  6. Step 6: Final answer
    x = 2,315.94

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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.