Home / 2,078.19-3,114.97-1,039.07

Finding the Fourth Proportional to 2,078.19, 3,114.97 and 1,039.07

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Solution

The fourth proportional to 2,078.19, 3,114.97 and 1,039.07 is: 1,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.19 : 3,114.97 = 1,039.07 : x
  2. Step 2: Convert to fraction form
    2,078.19/3,114.97 = 1,039.07/x
  3. Step 3: Cross multiply
    2,078.19x = 3,114.97 × 1,039.07
  4. Step 4: Simplify right side
    2,078.19x = 3,236,677.07
  5. Step 5: Solve for x
    x = 3,236,677.07/2,078.19
  6. Step 6: Final answer
    x = 1,557.45

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1.5x scale

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.