Home / 2,130.99-2,940.51-1,246.17

Finding the Fourth Proportional to 2,130.99, 2,940.51 and 1,246.17

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Solution

The fourth proportional to 2,130.99, 2,940.51 and 1,246.17 is: 1,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.99 : 2,940.51 = 1,246.17 : x
  2. Step 2: Convert to fraction form
    2,130.99/2,940.51 = 1,246.17/x
  3. Step 3: Cross multiply
    2,130.99x = 2,940.51 × 1,246.17
  4. Step 4: Simplify right side
    2,130.99x = 3,664,375.35
  5. Step 5: Solve for x
    x = 3,664,375.35/2,130.99
  6. Step 6: Final answer
    x = 1,719.56

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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.