Home / 3,101.36-4,651.76-1,153.20

Finding the Fourth Proportional to 3,101.36, 4,651.76 and 1,153.20

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Solution

The fourth proportional to 3,101.36, 4,651.76 and 1,153.20 is: 1,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.36 : 4,651.76 = 1,153.20 : x
  2. Step 2: Convert to fraction form
    3,101.36/4,651.76 = 1,153.20/x
  3. Step 3: Cross multiply
    3,101.36x = 4,651.76 × 1,153.20
  4. Step 4: Simplify right side
    3,101.36x = 5,364,409.63
  5. Step 5: Solve for x
    x = 5,364,409.63/3,101.36
  6. Step 6: Final answer
    x = 1,729.70

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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.