Home / 1,989.34-2,984.66-602.72

Finding the Fourth Proportional to 1,989.34, 2,984.66 and 602.72

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Solution

The fourth proportional to 1,989.34, 2,984.66 and 602.72 is: 904.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.34 : 2,984.66 = 602.72 : x
  2. Step 2: Convert to fraction form
    1,989.34/2,984.66 = 602.72/x
  3. Step 3: Cross multiply
    1,989.34x = 2,984.66 × 602.72
  4. Step 4: Simplify right side
    1,989.34x = 1,798,914.28
  5. Step 5: Solve for x
    x = 1,798,914.28/1,989.34
  6. Step 6: Final answer
    x = 904.28

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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.