Home / 1,615.86-2,227.74-1,394.34

Finding the Fourth Proportional to 1,615.86, 2,227.74 and 1,394.34

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Solution

The fourth proportional to 1,615.86, 2,227.74 and 1,394.34 is: 1,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.86 : 2,227.74 = 1,394.34 : x
  2. Step 2: Convert to fraction form
    1,615.86/2,227.74 = 1,394.34/x
  3. Step 3: Cross multiply
    1,615.86x = 2,227.74 × 1,394.34
  4. Step 4: Simplify right side
    1,615.86x = 3,106,226.99
  5. Step 5: Solve for x
    x = 3,106,226.99/1,615.86
  6. Step 6: Final answer
    x = 1,922.34

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1.5x scale

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.