Home / 2,419.90-3,340.63-1,622.93

Finding the Fourth Proportional to 2,419.90, 3,340.63 and 1,622.93

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Solution

The fourth proportional to 2,419.90, 3,340.63 and 1,622.93 is: 2,240.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.90 : 3,340.63 = 1,622.93 : x
  2. Step 2: Convert to fraction form
    2,419.90/3,340.63 = 1,622.93/x
  3. Step 3: Cross multiply
    2,419.90x = 3,340.63 × 1,622.93
  4. Step 4: Simplify right side
    2,419.90x = 5,421,583.83
  5. Step 5: Solve for x
    x = 5,421,583.83/2,419.90
  6. Step 6: Final answer
    x = 2,240.42

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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.