Home / 1,972.86-2,954.23-1,914.47

Finding the Fourth Proportional to 1,972.86, 2,954.23 and 1,914.47

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Solution

The fourth proportional to 1,972.86, 2,954.23 and 1,914.47 is: 2,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.86 : 2,954.23 = 1,914.47 : x
  2. Step 2: Convert to fraction form
    1,972.86/2,954.23 = 1,914.47/x
  3. Step 3: Cross multiply
    1,972.86x = 2,954.23 × 1,914.47
  4. Step 4: Simplify right side
    1,972.86x = 5,655,784.71
  5. Step 5: Solve for x
    x = 5,655,784.71/1,972.86
  6. Step 6: Final answer
    x = 2,866.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.