Home / 1,573.23-2,172.63-1,296.21

Finding the Fourth Proportional to 1,573.23, 2,172.63 and 1,296.21

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Solution

The fourth proportional to 1,573.23, 2,172.63 and 1,296.21 is: 1,790.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.23 : 2,172.63 = 1,296.21 : x
  2. Step 2: Convert to fraction form
    1,573.23/2,172.63 = 1,296.21/x
  3. Step 3: Cross multiply
    1,573.23x = 2,172.63 × 1,296.21
  4. Step 4: Simplify right side
    1,573.23x = 2,816,184.73
  5. Step 5: Solve for x
    x = 2,816,184.73/1,573.23
  6. Step 6: Final answer
    x = 1,790.07

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Why These Related Problems?

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