Home / 3,903.83-5,855.57-1,438.49

Finding the Fourth Proportional to 3,903.83, 5,855.57 and 1,438.49

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Solution

The fourth proportional to 3,903.83, 5,855.57 and 1,438.49 is: 2,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.83 : 5,855.57 = 1,438.49 : x
  2. Step 2: Convert to fraction form
    3,903.83/5,855.57 = 1,438.49/x
  3. Step 3: Cross multiply
    3,903.83x = 5,855.57 × 1,438.49
  4. Step 4: Simplify right side
    3,903.83x = 8,423,142.42
  5. Step 5: Solve for x
    x = 8,423,142.42/3,903.83
  6. Step 6: Final answer
    x = 2,157.66

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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.