Home / 4,185-6,278.51-1,263.33

Finding the Fourth Proportional to 4,185, 6,278.51 and 1,263.33

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Solution

The fourth proportional to 4,185, 6,278.51 and 1,263.33 is: 1,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185 : 6,278.51 = 1,263.33 : x
  2. Step 2: Convert to fraction form
    4,185/6,278.51 = 1,263.33/x
  3. Step 3: Cross multiply
    4,185x = 6,278.51 × 1,263.33
  4. Step 4: Simplify right side
    4,185x = 7,931,833.20
  5. Step 5: Solve for x
    x = 7,931,833.20/4,185
  6. Step 6: Final answer
    x = 1,895.30

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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.