Home / 1,418.61-2,128.29-1,010.35

Finding the Fourth Proportional to 1,418.61, 2,128.29 and 1,010.35

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Solution

The fourth proportional to 1,418.61, 2,128.29 and 1,010.35 is: 1,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.61 : 2,128.29 = 1,010.35 : x
  2. Step 2: Convert to fraction form
    1,418.61/2,128.29 = 1,010.35/x
  3. Step 3: Cross multiply
    1,418.61x = 2,128.29 × 1,010.35
  4. Step 4: Simplify right side
    1,418.61x = 2,150,317.80
  5. Step 5: Solve for x
    x = 2,150,317.80/1,418.61
  6. Step 6: Final answer
    x = 1,515.79

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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.