Home / 2,270.89-3,135.88-1,433.08

Finding the Fourth Proportional to 2,270.89, 3,135.88 and 1,433.08

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Solution

The fourth proportional to 2,270.89, 3,135.88 and 1,433.08 is: 1,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.89 : 3,135.88 = 1,433.08 : x
  2. Step 2: Convert to fraction form
    2,270.89/3,135.88 = 1,433.08/x
  3. Step 3: Cross multiply
    2,270.89x = 3,135.88 × 1,433.08
  4. Step 4: Simplify right side
    2,270.89x = 4,493,966.91
  5. Step 5: Solve for x
    x = 4,493,966.91/2,270.89
  6. Step 6: Final answer
    x = 1,978.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.