Home / 1,419.48-2,114.95-1,339.91

Finding the Fourth Proportional to 1,419.48, 2,114.95 and 1,339.91

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Solution

The fourth proportional to 1,419.48, 2,114.95 and 1,339.91 is: 1,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.48 : 2,114.95 = 1,339.91 : x
  2. Step 2: Convert to fraction form
    1,419.48/2,114.95 = 1,339.91/x
  3. Step 3: Cross multiply
    1,419.48x = 2,114.95 × 1,339.91
  4. Step 4: Simplify right side
    1,419.48x = 2,833,842.65
  5. Step 5: Solve for x
    x = 2,833,842.65/1,419.48
  6. Step 6: Final answer
    x = 1,996.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.