Home / 3,603.80-4,973.28-2,112.60

Finding the Fourth Proportional to 3,603.80, 4,973.28 and 2,112.60

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Solution

The fourth proportional to 3,603.80, 4,973.28 and 2,112.60 is: 2,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.80 : 4,973.28 = 2,112.60 : x
  2. Step 2: Convert to fraction form
    3,603.80/4,973.28 = 2,112.60/x
  3. Step 3: Cross multiply
    3,603.80x = 4,973.28 × 2,112.60
  4. Step 4: Simplify right side
    3,603.80x = 10,506,551.33
  5. Step 5: Solve for x
    x = 10,506,551.33/3,603.80
  6. Step 6: Final answer
    x = 2,915.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.