Home / 6,331.80-8,740.86-4,720.74

Finding the Fourth Proportional to 6,331.80, 8,740.86 and 4,720.74

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Solution

The fourth proportional to 6,331.80, 8,740.86 and 4,720.74 is: 6,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.80 : 8,740.86 = 4,720.74 : x
  2. Step 2: Convert to fraction form
    6,331.80/8,740.86 = 4,720.74/x
  3. Step 3: Cross multiply
    6,331.80x = 8,740.86 × 4,720.74
  4. Step 4: Simplify right side
    6,331.80x = 41,263,327.44
  5. Step 5: Solve for x
    x = 41,263,327.44/6,331.80
  6. Step 6: Final answer
    x = 6,516.84

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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.