Home / 3,570.36-5,355.99-1,381.02

Finding the Fourth Proportional to 3,570.36, 5,355.99 and 1,381.02

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Solution

The fourth proportional to 3,570.36, 5,355.99 and 1,381.02 is: 2,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.36 : 5,355.99 = 1,381.02 : x
  2. Step 2: Convert to fraction form
    3,570.36/5,355.99 = 1,381.02/x
  3. Step 3: Cross multiply
    3,570.36x = 5,355.99 × 1,381.02
  4. Step 4: Simplify right side
    3,570.36x = 7,396,729.31
  5. Step 5: Solve for x
    x = 7,396,729.31/3,570.36
  6. Step 6: Final answer
    x = 2,071.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.