Home / 1,989.18-2,983.74-602.54

Finding the Fourth Proportional to 1,989.18, 2,983.74 and 602.54

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Solution

The fourth proportional to 1,989.18, 2,983.74 and 602.54 is: 903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.18 : 2,983.74 = 602.54 : x
  2. Step 2: Convert to fraction form
    1,989.18/2,983.74 = 602.54/x
  3. Step 3: Cross multiply
    1,989.18x = 2,983.74 × 602.54
  4. Step 4: Simplify right side
    1,989.18x = 1,797,822.70
  5. Step 5: Solve for x
    x = 1,797,822.70/1,989.18
  6. Step 6: Final answer
    x = 903.80

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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.