Home / 2,106-2,902.23-1,515.51

Finding the Fourth Proportional to 2,106, 2,902.23 and 1,515.51

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Solution

The fourth proportional to 2,106, 2,902.23 and 1,515.51 is: 2,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106 : 2,902.23 = 1,515.51 : x
  2. Step 2: Convert to fraction form
    2,106/2,902.23 = 1,515.51/x
  3. Step 3: Cross multiply
    2,106x = 2,902.23 × 1,515.51
  4. Step 4: Simplify right side
    2,106x = 4,398,358.59
  5. Step 5: Solve for x
    x = 4,398,358.59/2,106
  6. Step 6: Final answer
    x = 2,088.49

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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.