Home / 1,988.02-2,743.14-1,323.73

Finding the Fourth Proportional to 1,988.02, 2,743.14 and 1,323.73

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Solution

The fourth proportional to 1,988.02, 2,743.14 and 1,323.73 is: 1,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.02 : 2,743.14 = 1,323.73 : x
  2. Step 2: Convert to fraction form
    1,988.02/2,743.14 = 1,323.73/x
  3. Step 3: Cross multiply
    1,988.02x = 2,743.14 × 1,323.73
  4. Step 4: Simplify right side
    1,988.02x = 3,631,176.71
  5. Step 5: Solve for x
    x = 3,631,176.71/1,988.02
  6. Step 6: Final answer
    x = 1,826.53

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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.