Home / 2,640.36-3,643.80-1,461.48

Finding the Fourth Proportional to 2,640.36, 3,643.80 and 1,461.48

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Solution

The fourth proportional to 2,640.36, 3,643.80 and 1,461.48 is: 2,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.36 : 3,643.80 = 1,461.48 : x
  2. Step 2: Convert to fraction form
    2,640.36/3,643.80 = 1,461.48/x
  3. Step 3: Cross multiply
    2,640.36x = 3,643.80 × 1,461.48
  4. Step 4: Simplify right side
    2,640.36x = 5,325,340.82
  5. Step 5: Solve for x
    x = 5,325,340.82/2,640.36
  6. Step 6: Final answer
    x = 2,016.90

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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.