Home / 2,120.14-2,923.99-1,364.05

Finding the Fourth Proportional to 2,120.14, 2,923.99 and 1,364.05

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Solution

The fourth proportional to 2,120.14, 2,923.99 and 1,364.05 is: 1,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.14 : 2,923.99 = 1,364.05 : x
  2. Step 2: Convert to fraction form
    2,120.14/2,923.99 = 1,364.05/x
  3. Step 3: Cross multiply
    2,120.14x = 2,923.99 × 1,364.05
  4. Step 4: Simplify right side
    2,120.14x = 3,988,461.13
  5. Step 5: Solve for x
    x = 3,988,461.13/2,120.14
  6. Step 6: Final answer
    x = 1,881.23

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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.