Home / 4,288.39-6,428.48-1,364.79

Finding the Fourth Proportional to 4,288.39, 6,428.48 and 1,364.79

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Solution

The fourth proportional to 4,288.39, 6,428.48 and 1,364.79 is: 2,045.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.39 : 6,428.48 = 1,364.79 : x
  2. Step 2: Convert to fraction form
    4,288.39/6,428.48 = 1,364.79/x
  3. Step 3: Cross multiply
    4,288.39x = 6,428.48 × 1,364.79
  4. Step 4: Simplify right side
    4,288.39x = 8,773,525.22
  5. Step 5: Solve for x
    x = 8,773,525.22/4,288.39
  6. Step 6: Final answer
    x = 2,045.88

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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.