Home / 2,381.19-3,285.66-1,333.05

Finding the Fourth Proportional to 2,381.19, 3,285.66 and 1,333.05

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Solution

The fourth proportional to 2,381.19, 3,285.66 and 1,333.05 is: 1,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.19 : 3,285.66 = 1,333.05 : x
  2. Step 2: Convert to fraction form
    2,381.19/3,285.66 = 1,333.05/x
  3. Step 3: Cross multiply
    2,381.19x = 3,285.66 × 1,333.05
  4. Step 4: Simplify right side
    2,381.19x = 4,379,949.06
  5. Step 5: Solve for x
    x = 4,379,949.06/2,381.19
  6. Step 6: Final answer
    x = 1,839.40

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,382.19, 3,287.04 and 1,334.05
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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.