Home / 5,655.31-7,804.38-3,137.45

Finding the Fourth Proportional to 5,655.31, 7,804.38 and 3,137.45

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Solution

The fourth proportional to 5,655.31, 7,804.38 and 3,137.45 is: 4,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.31 : 7,804.38 = 3,137.45 : x
  2. Step 2: Convert to fraction form
    5,655.31/7,804.38 = 3,137.45/x
  3. Step 3: Cross multiply
    5,655.31x = 7,804.38 × 3,137.45
  4. Step 4: Simplify right side
    5,655.31x = 24,485,852.03
  5. Step 5: Solve for x
    x = 24,485,852.03/5,655.31
  6. Step 6: Final answer
    x = 4,329.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.