Home / 4,291.56-6,443.28-2,213.28

Finding the Fourth Proportional to 4,291.56, 6,443.28 and 2,213.28

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Solution

The fourth proportional to 4,291.56, 6,443.28 and 2,213.28 is: 3,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.56 : 6,443.28 = 2,213.28 : x
  2. Step 2: Convert to fraction form
    4,291.56/6,443.28 = 2,213.28/x
  3. Step 3: Cross multiply
    4,291.56x = 6,443.28 × 2,213.28
  4. Step 4: Simplify right side
    4,291.56x = 14,260,782.76
  5. Step 5: Solve for x
    x = 14,260,782.76/4,291.56
  6. Step 6: Final answer
    x = 3,322.98

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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.