Home / 1,511.90-2,256.79-1,400.60

Finding the Fourth Proportional to 1,511.90, 2,256.79 and 1,400.60

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Solution

The fourth proportional to 1,511.90, 2,256.79 and 1,400.60 is: 2,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.90 : 2,256.79 = 1,400.60 : x
  2. Step 2: Convert to fraction form
    1,511.90/2,256.79 = 1,400.60/x
  3. Step 3: Cross multiply
    1,511.90x = 2,256.79 × 1,400.60
  4. Step 4: Simplify right side
    1,511.90x = 3,160,860.07
  5. Step 5: Solve for x
    x = 3,160,860.07/1,511.90
  6. Step 6: Final answer
    x = 2,090.65

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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.