Home / 6,074.40-8,382.64-3,421.80

Finding the Fourth Proportional to 6,074.40, 8,382.64 and 3,421.80

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Solution

The fourth proportional to 6,074.40, 8,382.64 and 3,421.80 is: 4,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,074.40 : 8,382.64 = 3,421.80 : x
  2. Step 2: Convert to fraction form
    6,074.40/8,382.64 = 3,421.80/x
  3. Step 3: Cross multiply
    6,074.40x = 8,382.64 × 3,421.80
  4. Step 4: Simplify right side
    6,074.40x = 28,683,717.55
  5. Step 5: Solve for x
    x = 28,683,717.55/6,074.40
  6. Step 6: Final answer
    x = 4,722.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.