Home / 1,989.29-2,983.49-602.30

Finding the Fourth Proportional to 1,989.29, 2,983.49 and 602.30

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Solution

The fourth proportional to 1,989.29, 2,983.49 and 602.30 is: 903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.29 : 2,983.49 = 602.30 : x
  2. Step 2: Convert to fraction form
    1,989.29/2,983.49 = 602.30/x
  3. Step 3: Cross multiply
    1,989.29x = 2,983.49 × 602.30
  4. Step 4: Simplify right side
    1,989.29x = 1,796,941.11
  5. Step 5: Solve for x
    x = 1,796,941.11/1,989.29
  6. Step 6: Final answer
    x = 903.31

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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.