Home / 3,101.36-4,278.96-1,774.99

Finding the Fourth Proportional to 3,101.36, 4,278.96 and 1,774.99

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Solution

The fourth proportional to 3,101.36, 4,278.96 and 1,774.99 is: 2,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.36 : 4,278.96 = 1,774.99 : x
  2. Step 2: Convert to fraction form
    3,101.36/4,278.96 = 1,774.99/x
  3. Step 3: Cross multiply
    3,101.36x = 4,278.96 × 1,774.99
  4. Step 4: Simplify right side
    3,101.36x = 7,595,111.21
  5. Step 5: Solve for x
    x = 7,595,111.21/3,101.36
  6. Step 6: Final answer
    x = 2,448.96

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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.