Home / 1,261.34-1,738.98-1,036.44

Finding the Fourth Proportional to 1,261.34, 1,738.98 and 1,036.44

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Solution

The fourth proportional to 1,261.34, 1,738.98 and 1,036.44 is: 1,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.34 : 1,738.98 = 1,036.44 : x
  2. Step 2: Convert to fraction form
    1,261.34/1,738.98 = 1,036.44/x
  3. Step 3: Cross multiply
    1,261.34x = 1,738.98 × 1,036.44
  4. Step 4: Simplify right side
    1,261.34x = 1,802,348.43
  5. Step 5: Solve for x
    x = 1,802,348.43/1,261.34
  6. Step 6: Final answer
    x = 1,428.92

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1.5x scale

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.