Home / 3,112.31-4,663.59-1,955.63

Finding the Fourth Proportional to 3,112.31, 4,663.59 and 1,955.63

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Solution

The fourth proportional to 3,112.31, 4,663.59 and 1,955.63 is: 2,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.31 : 4,663.59 = 1,955.63 : x
  2. Step 2: Convert to fraction form
    3,112.31/4,663.59 = 1,955.63/x
  3. Step 3: Cross multiply
    3,112.31x = 4,663.59 × 1,955.63
  4. Step 4: Simplify right side
    3,112.31x = 9,120,233.19
  5. Step 5: Solve for x
    x = 9,120,233.19/3,112.31
  6. Step 6: Final answer
    x = 2,930.38

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1.5x scale

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.