Home / 4,218.80-6,328.08-1,447.36

Finding the Fourth Proportional to 4,218.80, 6,328.08 and 1,447.36

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Solution

The fourth proportional to 4,218.80, 6,328.08 and 1,447.36 is: 2,171.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.80 : 6,328.08 = 1,447.36 : x
  2. Step 2: Convert to fraction form
    4,218.80/6,328.08 = 1,447.36/x
  3. Step 3: Cross multiply
    4,218.80x = 6,328.08 × 1,447.36
  4. Step 4: Simplify right side
    4,218.80x = 9,159,009.87
  5. Step 5: Solve for x
    x = 9,159,009.87/4,218.80
  6. Step 6: Final answer
    x = 2,171.00

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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.