Home / 2,801.07-3,865.47-1,682.96

Finding the Fourth Proportional to 2,801.07, 3,865.47 and 1,682.96

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Solution

The fourth proportional to 2,801.07, 3,865.47 and 1,682.96 is: 2,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.07 : 3,865.47 = 1,682.96 : x
  2. Step 2: Convert to fraction form
    2,801.07/3,865.47 = 1,682.96/x
  3. Step 3: Cross multiply
    2,801.07x = 3,865.47 × 1,682.96
  4. Step 4: Simplify right side
    2,801.07x = 6,505,412.06
  5. Step 5: Solve for x
    x = 6,505,412.06/2,801.07
  6. Step 6: Final answer
    x = 2,322.47

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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.