Home / 1,901.21-2,623.55-1,193.76

Finding the Fourth Proportional to 1,901.21, 2,623.55 and 1,193.76

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Solution

The fourth proportional to 1,901.21, 2,623.55 and 1,193.76 is: 1,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.21 : 2,623.55 = 1,193.76 : x
  2. Step 2: Convert to fraction form
    1,901.21/2,623.55 = 1,193.76/x
  3. Step 3: Cross multiply
    1,901.21x = 2,623.55 × 1,193.76
  4. Step 4: Simplify right side
    1,901.21x = 3,131,883.08
  5. Step 5: Solve for x
    x = 3,131,883.08/1,901.21
  6. Step 6: Final answer
    x = 1,647.31

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Double scale
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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.