Home / 4,272.98-6,410.39-1,311.43

Finding the Fourth Proportional to 4,272.98, 6,410.39 and 1,311.43

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Solution

The fourth proportional to 4,272.98, 6,410.39 and 1,311.43 is: 1,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.98 : 6,410.39 = 1,311.43 : x
  2. Step 2: Convert to fraction form
    4,272.98/6,410.39 = 1,311.43/x
  3. Step 3: Cross multiply
    4,272.98x = 6,410.39 × 1,311.43
  4. Step 4: Simplify right side
    4,272.98x = 8,406,777.76
  5. Step 5: Solve for x
    x = 8,406,777.76/4,272.98
  6. Step 6: Final answer
    x = 1,967.43

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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.