Home / 4,250.80-6,376.20-1,329.40

Finding the Fourth Proportional to 4,250.80, 6,376.20 and 1,329.40

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Solution

The fourth proportional to 4,250.80, 6,376.20 and 1,329.40 is: 1,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,250.80 : 6,376.20 = 1,329.40 : x
  2. Step 2: Convert to fraction form
    4,250.80/6,376.20 = 1,329.40/x
  3. Step 3: Cross multiply
    4,250.80x = 6,376.20 × 1,329.40
  4. Step 4: Simplify right side
    4,250.80x = 8,476,520.28
  5. Step 5: Solve for x
    x = 8,476,520.28/4,250.80
  6. Step 6: Final answer
    x = 1,994.10

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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.