Home / 3,630.42-5,445.63-1,439.02

Finding the Fourth Proportional to 3,630.42, 5,445.63 and 1,439.02

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Solution

The fourth proportional to 3,630.42, 5,445.63 and 1,439.02 is: 2,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.42 : 5,445.63 = 1,439.02 : x
  2. Step 2: Convert to fraction form
    3,630.42/5,445.63 = 1,439.02/x
  3. Step 3: Cross multiply
    3,630.42x = 5,445.63 × 1,439.02
  4. Step 4: Simplify right side
    3,630.42x = 7,836,346.66
  5. Step 5: Solve for x
    x = 7,836,346.66/3,630.42
  6. Step 6: Final answer
    x = 2,158.52

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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.