Home / 2,919.12-4,030.88-1,924.03

Finding the Fourth Proportional to 2,919.12, 4,030.88 and 1,924.03

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Solution

The fourth proportional to 2,919.12, 4,030.88 and 1,924.03 is: 2,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.12 : 4,030.88 = 1,924.03 : x
  2. Step 2: Convert to fraction form
    2,919.12/4,030.88 = 1,924.03/x
  3. Step 3: Cross multiply
    2,919.12x = 4,030.88 × 1,924.03
  4. Step 4: Simplify right side
    2,919.12x = 7,755,534.05
  5. Step 5: Solve for x
    x = 7,755,534.05/2,919.12
  6. Step 6: Final answer
    x = 2,656.81

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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.