Home / 2,210.90-3,051.07-1,216.22

Finding the Fourth Proportional to 2,210.90, 3,051.07 and 1,216.22

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Solution

The fourth proportional to 2,210.90, 3,051.07 and 1,216.22 is: 1,678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.90 : 3,051.07 = 1,216.22 : x
  2. Step 2: Convert to fraction form
    2,210.90/3,051.07 = 1,216.22/x
  3. Step 3: Cross multiply
    2,210.90x = 3,051.07 × 1,216.22
  4. Step 4: Simplify right side
    2,210.90x = 3,710,754.06
  5. Step 5: Solve for x
    x = 3,710,754.06/2,210.90
  6. Step 6: Final answer
    x = 1,678.39

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Double scale
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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.