Home / 2,640.09-3,643.81-1,697.06

Finding the Fourth Proportional to 2,640.09, 3,643.81 and 1,697.06

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Solution

The fourth proportional to 2,640.09, 3,643.81 and 1,697.06 is: 2,342.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.09 : 3,643.81 = 1,697.06 : x
  2. Step 2: Convert to fraction form
    2,640.09/3,643.81 = 1,697.06/x
  3. Step 3: Cross multiply
    2,640.09x = 3,643.81 × 1,697.06
  4. Step 4: Simplify right side
    2,640.09x = 6,183,764.20
  5. Step 5: Solve for x
    x = 6,183,764.20/2,640.09
  6. Step 6: Final answer
    x = 2,342.26

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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.