Home / 4,291.47-6,436.49-1,212.75

Finding the Fourth Proportional to 4,291.47, 6,436.49 and 1,212.75

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Solution

The fourth proportional to 4,291.47, 6,436.49 and 1,212.75 is: 1,818.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.47 : 6,436.49 = 1,212.75 : x
  2. Step 2: Convert to fraction form
    4,291.47/6,436.49 = 1,212.75/x
  3. Step 3: Cross multiply
    4,291.47x = 6,436.49 × 1,212.75
  4. Step 4: Simplify right side
    4,291.47x = 7,805,847.18
  5. Step 5: Solve for x
    x = 7,805,847.18/4,291.47
  6. Step 6: Final answer
    x = 1,818.92

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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.