Home / 5,382.93-7,427.79-3,145.35

Finding the Fourth Proportional to 5,382.93, 7,427.79 and 3,145.35

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Solution

The fourth proportional to 5,382.93, 7,427.79 and 3,145.35 is: 4,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.93 : 7,427.79 = 3,145.35 : x
  2. Step 2: Convert to fraction form
    5,382.93/7,427.79 = 3,145.35/x
  3. Step 3: Cross multiply
    5,382.93x = 7,427.79 × 3,145.35
  4. Step 4: Simplify right side
    5,382.93x = 23,362,999.28
  5. Step 5: Solve for x
    x = 23,362,999.28/5,382.93
  6. Step 6: Final answer
    x = 4,340.20

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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.