Home / 1,512.65-2,085.96-1,180.95

Finding the Fourth Proportional to 1,512.65, 2,085.96 and 1,180.95

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Solution

The fourth proportional to 1,512.65, 2,085.96 and 1,180.95 is: 1,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.65 : 2,085.96 = 1,180.95 : x
  2. Step 2: Convert to fraction form
    1,512.65/2,085.96 = 1,180.95/x
  3. Step 3: Cross multiply
    1,512.65x = 2,085.96 × 1,180.95
  4. Step 4: Simplify right side
    1,512.65x = 2,463,414.46
  5. Step 5: Solve for x
    x = 2,463,414.46/1,512.65
  6. Step 6: Final answer
    x = 1,628.54

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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.