Home / 1,862.21-2,795.15-1,419.35

Finding the Fourth Proportional to 1,862.21, 2,795.15 and 1,419.35

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Solution

The fourth proportional to 1,862.21, 2,795.15 and 1,419.35 is: 2,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.21 : 2,795.15 = 1,419.35 : x
  2. Step 2: Convert to fraction form
    1,862.21/2,795.15 = 1,419.35/x
  3. Step 3: Cross multiply
    1,862.21x = 2,795.15 × 1,419.35
  4. Step 4: Simplify right side
    1,862.21x = 3,967,285.73
  5. Step 5: Solve for x
    x = 3,967,285.73/1,862.21
  6. Step 6: Final answer
    x = 2,130.42

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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.