Home / 1,989.19-2,984.10-602.36

Finding the Fourth Proportional to 1,989.19, 2,984.10 and 602.36

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Solution

The fourth proportional to 1,989.19, 2,984.10 and 602.36 is: 903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.19 : 2,984.10 = 602.36 : x
  2. Step 2: Convert to fraction form
    1,989.19/2,984.10 = 602.36/x
  3. Step 3: Cross multiply
    1,989.19x = 2,984.10 × 602.36
  4. Step 4: Simplify right side
    1,989.19x = 1,797,502.48
  5. Step 5: Solve for x
    x = 1,797,502.48/1,989.19
  6. Step 6: Final answer
    x = 903.64

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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.