Home / 1,419.91-2,125.25-1,223.08

Finding the Fourth Proportional to 1,419.91, 2,125.25 and 1,223.08

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Solution

The fourth proportional to 1,419.91, 2,125.25 and 1,223.08 is: 1,830.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.91 : 2,125.25 = 1,223.08 : x
  2. Step 2: Convert to fraction form
    1,419.91/2,125.25 = 1,223.08/x
  3. Step 3: Cross multiply
    1,419.91x = 2,125.25 × 1,223.08
  4. Step 4: Simplify right side
    1,419.91x = 2,599,339.34
  5. Step 5: Solve for x
    x = 2,599,339.34/1,419.91
  6. Step 6: Final answer
    x = 1,830.64

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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.