Home / 2,130.77-3,196.67-1,021.02

Finding the Fourth Proportional to 2,130.77, 3,196.67 and 1,021.02

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Solution

The fourth proportional to 2,130.77, 3,196.67 and 1,021.02 is: 1,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.77 : 3,196.67 = 1,021.02 : x
  2. Step 2: Convert to fraction form
    2,130.77/3,196.67 = 1,021.02/x
  3. Step 3: Cross multiply
    2,130.77x = 3,196.67 × 1,021.02
  4. Step 4: Simplify right side
    2,130.77x = 3,263,864.00
  5. Step 5: Solve for x
    x = 3,263,864.00/2,130.77
  6. Step 6: Final answer
    x = 1,531.78

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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.