Home / 1,465.40-2,198.38-491.38

Finding the Fourth Proportional to 1,465.40, 2,198.38 and 491.38

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Solution

The fourth proportional to 1,465.40, 2,198.38 and 491.38 is: 737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.40 : 2,198.38 = 491.38 : x
  2. Step 2: Convert to fraction form
    1,465.40/2,198.38 = 491.38/x
  3. Step 3: Cross multiply
    1,465.40x = 2,198.38 × 491.38
  4. Step 4: Simplify right side
    1,465.40x = 1,080,239.96
  5. Step 5: Solve for x
    x = 1,080,239.96/1,465.40
  6. Step 6: Final answer
    x = 737.16

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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.