Home / 4,281.20-6,421.80-3,114.80

Finding the Fourth Proportional to 4,281.20, 6,421.80 and 3,114.80

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Solution

The fourth proportional to 4,281.20, 6,421.80 and 3,114.80 is: 4,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.20 : 6,421.80 = 3,114.80 : x
  2. Step 2: Convert to fraction form
    4,281.20/6,421.80 = 3,114.80/x
  3. Step 3: Cross multiply
    4,281.20x = 6,421.80 × 3,114.80
  4. Step 4: Simplify right side
    4,281.20x = 20,002,622.64
  5. Step 5: Solve for x
    x = 20,002,622.64/4,281.20
  6. Step 6: Final answer
    x = 4,672.20

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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.