Home / 2,130.56-3,194.88-1,253.48

Finding the Fourth Proportional to 2,130.56, 3,194.88 and 1,253.48

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Solution

The fourth proportional to 2,130.56, 3,194.88 and 1,253.48 is: 1,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.56 : 3,194.88 = 1,253.48 : x
  2. Step 2: Convert to fraction form
    2,130.56/3,194.88 = 1,253.48/x
  3. Step 3: Cross multiply
    2,130.56x = 3,194.88 × 1,253.48
  4. Step 4: Simplify right side
    2,130.56x = 4,004,718.18
  5. Step 5: Solve for x
    x = 4,004,718.18/2,130.56
  6. Step 6: Final answer
    x = 1,879.66

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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.