Home / 1,729.02-2,385.84-982.98

Finding the Fourth Proportional to 1,729.02, 2,385.84 and 982.98

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Solution

The fourth proportional to 1,729.02, 2,385.84 and 982.98 is: 1,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.02 : 2,385.84 = 982.98 : x
  2. Step 2: Convert to fraction form
    1,729.02/2,385.84 = 982.98/x
  3. Step 3: Cross multiply
    1,729.02x = 2,385.84 × 982.98
  4. Step 4: Simplify right side
    1,729.02x = 2,345,233.00
  5. Step 5: Solve for x
    x = 2,345,233.00/1,729.02
  6. Step 6: Final answer
    x = 1,356.39

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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.