Home / 3,100.19-4,278.12-1,774.01

Finding the Fourth Proportional to 3,100.19, 4,278.12 and 1,774.01

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Solution

The fourth proportional to 3,100.19, 4,278.12 and 1,774.01 is: 2,448.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.19 : 4,278.12 = 1,774.01 : x
  2. Step 2: Convert to fraction form
    3,100.19/4,278.12 = 1,774.01/x
  3. Step 3: Cross multiply
    3,100.19x = 4,278.12 × 1,774.01
  4. Step 4: Simplify right side
    3,100.19x = 7,589,406.27
  5. Step 5: Solve for x
    x = 7,589,406.27/3,100.19
  6. Step 6: Final answer
    x = 2,448.05

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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.