Home / 1,465.31-2,198.21-491.65

Finding the Fourth Proportional to 1,465.31, 2,198.21 and 491.65

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Solution

The fourth proportional to 1,465.31, 2,198.21 and 491.65 is: 737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.31 : 2,198.21 = 491.65 : x
  2. Step 2: Convert to fraction form
    1,465.31/2,198.21 = 491.65/x
  3. Step 3: Cross multiply
    1,465.31x = 2,198.21 × 491.65
  4. Step 4: Simplify right side
    1,465.31x = 1,080,741.99
  5. Step 5: Solve for x
    x = 1,080,741.99/1,465.31
  6. Step 6: Final answer
    x = 737.55

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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.