Home / 4,240.32-6,362.76-1,643.28

Finding the Fourth Proportional to 4,240.32, 6,362.76 and 1,643.28

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Solution

The fourth proportional to 4,240.32, 6,362.76 and 1,643.28 is: 2,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.32 : 6,362.76 = 1,643.28 : x
  2. Step 2: Convert to fraction form
    4,240.32/6,362.76 = 1,643.28/x
  3. Step 3: Cross multiply
    4,240.32x = 6,362.76 × 1,643.28
  4. Step 4: Simplify right side
    4,240.32x = 10,455,796.25
  5. Step 5: Solve for x
    x = 10,455,796.25/4,240.32
  6. Step 6: Final answer
    x = 2,465.80

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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.