Home / 1,486.02-2,218.47-1,321.98

Finding the Fourth Proportional to 1,486.02, 2,218.47 and 1,321.98

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Solution

The fourth proportional to 1,486.02, 2,218.47 and 1,321.98 is: 1,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.02 : 2,218.47 = 1,321.98 : x
  2. Step 2: Convert to fraction form
    1,486.02/2,218.47 = 1,321.98/x
  3. Step 3: Cross multiply
    1,486.02x = 2,218.47 × 1,321.98
  4. Step 4: Simplify right side
    1,486.02x = 2,932,772.97
  5. Step 5: Solve for x
    x = 2,932,772.97/1,486.02
  6. Step 6: Final answer
    x = 1,973.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.