Home / 2,106.25-2,906.65-1,210.14

Finding the Fourth Proportional to 2,106.25, 2,906.65 and 1,210.14

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Solution

The fourth proportional to 2,106.25, 2,906.65 and 1,210.14 is: 1,670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.25 : 2,906.65 = 1,210.14 : x
  2. Step 2: Convert to fraction form
    2,106.25/2,906.65 = 1,210.14/x
  3. Step 3: Cross multiply
    2,106.25x = 2,906.65 × 1,210.14
  4. Step 4: Simplify right side
    2,106.25x = 3,517,454.94
  5. Step 5: Solve for x
    x = 3,517,454.94/2,106.25
  6. Step 6: Final answer
    x = 1,670.01

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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.