Home / 3,630.47-5,445.03-1,963.81

Finding the Fourth Proportional to 3,630.47, 5,445.03 and 1,963.81

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Solution

The fourth proportional to 3,630.47, 5,445.03 and 1,963.81 is: 2,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.47 : 5,445.03 = 1,963.81 : x
  2. Step 2: Convert to fraction form
    3,630.47/5,445.03 = 1,963.81/x
  3. Step 3: Cross multiply
    3,630.47x = 5,445.03 × 1,963.81
  4. Step 4: Simplify right side
    3,630.47x = 10,692,977.14
  5. Step 5: Solve for x
    x = 10,692,977.14/3,630.47
  6. Step 6: Final answer
    x = 2,945.35

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1.5x scale

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.