Home / 4,421.81-6,631.40-2,080.51

Finding the Fourth Proportional to 4,421.81, 6,631.40 and 2,080.51

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Solution

The fourth proportional to 4,421.81, 6,631.40 and 2,080.51 is: 3,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.81 : 6,631.40 = 2,080.51 : x
  2. Step 2: Convert to fraction form
    4,421.81/6,631.40 = 2,080.51/x
  3. Step 3: Cross multiply
    4,421.81x = 6,631.40 × 2,080.51
  4. Step 4: Simplify right side
    4,421.81x = 13,796,682.64
  5. Step 5: Solve for x
    x = 13,796,682.64/4,421.81
  6. Step 6: Final answer
    x = 3,120.14

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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.