Home / 3,630.53-5,447.28-1,290.98

Finding the Fourth Proportional to 3,630.53, 5,447.28 and 1,290.98

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Solution

The fourth proportional to 3,630.53, 5,447.28 and 1,290.98 is: 1,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.53 : 5,447.28 = 1,290.98 : x
  2. Step 2: Convert to fraction form
    3,630.53/5,447.28 = 1,290.98/x
  3. Step 3: Cross multiply
    3,630.53x = 5,447.28 × 1,290.98
  4. Step 4: Simplify right side
    3,630.53x = 7,032,329.53
  5. Step 5: Solve for x
    x = 7,032,329.53/3,630.53
  6. Step 6: Final answer
    x = 1,937.00

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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.