Home / 2,205.06-3,042.97-1,210.36

Finding the Fourth Proportional to 2,205.06, 3,042.97 and 1,210.36

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Solution

The fourth proportional to 2,205.06, 3,042.97 and 1,210.36 is: 1,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.06 : 3,042.97 = 1,210.36 : x
  2. Step 2: Convert to fraction form
    2,205.06/3,042.97 = 1,210.36/x
  3. Step 3: Cross multiply
    2,205.06x = 3,042.97 × 1,210.36
  4. Step 4: Simplify right side
    2,205.06x = 3,683,075.47
  5. Step 5: Solve for x
    x = 3,683,075.47/2,205.06
  6. Step 6: Final answer
    x = 1,670.28

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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.