Home / 1,476.09-2,036.99-812.95

Finding the Fourth Proportional to 1,476.09, 2,036.99 and 812.95

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Solution

The fourth proportional to 1,476.09, 2,036.99 and 812.95 is: 1,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.09 : 2,036.99 = 812.95 : x
  2. Step 2: Convert to fraction form
    1,476.09/2,036.99 = 812.95/x
  3. Step 3: Cross multiply
    1,476.09x = 2,036.99 × 812.95
  4. Step 4: Simplify right side
    1,476.09x = 1,655,961.35
  5. Step 5: Solve for x
    x = 1,655,961.35/1,476.09
  6. Step 6: Final answer
    x = 1,121.85

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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.