Home / 1,518.08-2,274.56-1,391.36

Finding the Fourth Proportional to 1,518.08, 2,274.56 and 1,391.36

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Solution

The fourth proportional to 1,518.08, 2,274.56 and 1,391.36 is: 2,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.08 : 2,274.56 = 1,391.36 : x
  2. Step 2: Convert to fraction form
    1,518.08/2,274.56 = 1,391.36/x
  3. Step 3: Cross multiply
    1,518.08x = 2,274.56 × 1,391.36
  4. Step 4: Simplify right side
    1,518.08x = 3,164,731.80
  5. Step 5: Solve for x
    x = 3,164,731.80/1,518.08
  6. Step 6: Final answer
    x = 2,084.69

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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.