Home / 4,178.16-6,265.35-1,989.54

Finding the Fourth Proportional to 4,178.16, 6,265.35 and 1,989.54

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Solution

The fourth proportional to 4,178.16, 6,265.35 and 1,989.54 is: 2,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.16 : 6,265.35 = 1,989.54 : x
  2. Step 2: Convert to fraction form
    4,178.16/6,265.35 = 1,989.54/x
  3. Step 3: Cross multiply
    4,178.16x = 6,265.35 × 1,989.54
  4. Step 4: Simplify right side
    4,178.16x = 12,465,164.44
  5. Step 5: Solve for x
    x = 12,465,164.44/4,178.16
  6. Step 6: Final answer
    x = 2,983.41

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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.