Home / 4,190.32-5,782.68-2,421.76

Finding the Fourth Proportional to 4,190.32, 5,782.68 and 2,421.76

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Solution

The fourth proportional to 4,190.32, 5,782.68 and 2,421.76 is: 3,342.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.32 : 5,782.68 = 2,421.76 : x
  2. Step 2: Convert to fraction form
    4,190.32/5,782.68 = 2,421.76/x
  3. Step 3: Cross multiply
    4,190.32x = 5,782.68 × 2,421.76
  4. Step 4: Simplify right side
    4,190.32x = 14,004,263.12
  5. Step 5: Solve for x
    x = 14,004,263.12/4,190.32
  6. Step 6: Final answer
    x = 3,342.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.