Home / 1,919.00-2,878.21-602.45

Finding the Fourth Proportional to 1,919.00, 2,878.21 and 602.45

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Solution

The fourth proportional to 1,919.00, 2,878.21 and 602.45 is: 903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.00 : 2,878.21 = 602.45 : x
  2. Step 2: Convert to fraction form
    1,919.00/2,878.21 = 602.45/x
  3. Step 3: Cross multiply
    1,919.00x = 2,878.21 × 602.45
  4. Step 4: Simplify right side
    1,919.00x = 1,733,974.77
  5. Step 5: Solve for x
    x = 1,733,974.77/1,919.00
  6. Step 6: Final answer
    x = 903.58

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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.