Home / 2,130.63-2,940.29-1,199.13

Finding the Fourth Proportional to 2,130.63, 2,940.29 and 1,199.13

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Solution

The fourth proportional to 2,130.63, 2,940.29 and 1,199.13 is: 1,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.63 : 2,940.29 = 1,199.13 : x
  2. Step 2: Convert to fraction form
    2,130.63/2,940.29 = 1,199.13/x
  3. Step 3: Cross multiply
    2,130.63x = 2,940.29 × 1,199.13
  4. Step 4: Simplify right side
    2,130.63x = 3,525,789.95
  5. Step 5: Solve for x
    x = 3,525,789.95/2,130.63
  6. Step 6: Final answer
    x = 1,654.81

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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.