Home / 1,315.50-1,973.37-449.82

Finding the Fourth Proportional to 1,315.50, 1,973.37 and 449.82

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Solution

The fourth proportional to 1,315.50, 1,973.37 and 449.82 is: 674.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315.50 : 1,973.37 = 449.82 : x
  2. Step 2: Convert to fraction form
    1,315.50/1,973.37 = 449.82/x
  3. Step 3: Cross multiply
    1,315.50x = 1,973.37 × 449.82
  4. Step 4: Simplify right side
    1,315.50x = 887,661.29
  5. Step 5: Solve for x
    x = 887,661.29/1,315.50
  6. Step 6: Final answer
    x = 674.77

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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.