Home / 2,989.90-4,482.42-1,043.47

Finding the Fourth Proportional to 2,989.90, 4,482.42 and 1,043.47

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Solution

The fourth proportional to 2,989.90, 4,482.42 and 1,043.47 is: 1,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.90 : 4,482.42 = 1,043.47 : x
  2. Step 2: Convert to fraction form
    2,989.90/4,482.42 = 1,043.47/x
  3. Step 3: Cross multiply
    2,989.90x = 4,482.42 × 1,043.47
  4. Step 4: Simplify right side
    2,989.90x = 4,677,270.80
  5. Step 5: Solve for x
    x = 4,677,270.80/2,989.90
  6. Step 6: Final answer
    x = 1,564.36

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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.