Home / 4,180.32-6,265.08-1,989.72

Finding the Fourth Proportional to 4,180.32, 6,265.08 and 1,989.72

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Solution

The fourth proportional to 4,180.32, 6,265.08 and 1,989.72 is: 2,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.32 : 6,265.08 = 1,989.72 : x
  2. Step 2: Convert to fraction form
    4,180.32/6,265.08 = 1,989.72/x
  3. Step 3: Cross multiply
    4,180.32x = 6,265.08 × 1,989.72
  4. Step 4: Simplify right side
    4,180.32x = 12,465,754.98
  5. Step 5: Solve for x
    x = 12,465,754.98/4,180.32
  6. Step 6: Final answer
    x = 2,982.01

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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.