Home / 4,230.21-6,343.65-1,267.80

Finding the Fourth Proportional to 4,230.21, 6,343.65 and 1,267.80

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Solution

The fourth proportional to 4,230.21, 6,343.65 and 1,267.80 is: 1,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230.21 : 6,343.65 = 1,267.80 : x
  2. Step 2: Convert to fraction form
    4,230.21/6,343.65 = 1,267.80/x
  3. Step 3: Cross multiply
    4,230.21x = 6,343.65 × 1,267.80
  4. Step 4: Simplify right side
    4,230.21x = 8,042,479.47
  5. Step 5: Solve for x
    x = 8,042,479.47/4,230.21
  6. Step 6: Final answer
    x = 1,901.20

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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.