Home / 1,419.03-2,124.90-1,384.20

Finding the Fourth Proportional to 1,419.03, 2,124.90 and 1,384.20

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Solution

The fourth proportional to 1,419.03, 2,124.90 and 1,384.20 is: 2,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.03 : 2,124.90 = 1,384.20 : x
  2. Step 2: Convert to fraction form
    1,419.03/2,124.90 = 1,384.20/x
  3. Step 3: Cross multiply
    1,419.03x = 2,124.90 × 1,384.20
  4. Step 4: Simplify right side
    1,419.03x = 2,941,286.58
  5. Step 5: Solve for x
    x = 2,941,286.58/1,419.03
  6. Step 6: Final answer
    x = 2,072.74

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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.