Home / 6,289.74-8,679.96-3,457.08

Finding the Fourth Proportional to 6,289.74, 8,679.96 and 3,457.08

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Solution

The fourth proportional to 6,289.74, 8,679.96 and 3,457.08 is: 4,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.74 : 8,679.96 = 3,457.08 : x
  2. Step 2: Convert to fraction form
    6,289.74/8,679.96 = 3,457.08/x
  3. Step 3: Cross multiply
    6,289.74x = 8,679.96 × 3,457.08
  4. Step 4: Simplify right side
    6,289.74x = 30,007,316.12
  5. Step 5: Solve for x
    x = 30,007,316.12/6,289.74
  6. Step 6: Final answer
    x = 4,770.84

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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.