Home / 1,457.98-2,189.58-1,399.26

Finding the Fourth Proportional to 1,457.98, 2,189.58 and 1,399.26

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Solution

The fourth proportional to 1,457.98, 2,189.58 and 1,399.26 is: 2,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.98 : 2,189.58 = 1,399.26 : x
  2. Step 2: Convert to fraction form
    1,457.98/2,189.58 = 1,399.26/x
  3. Step 3: Cross multiply
    1,457.98x = 2,189.58 × 1,399.26
  4. Step 4: Simplify right side
    1,457.98x = 3,063,791.71
  5. Step 5: Solve for x
    x = 3,063,791.71/1,457.98
  6. Step 6: Final answer
    x = 2,101.39

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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.