Home / 4,678.88-6,457.90-3,187.38

Finding the Fourth Proportional to 4,678.88, 6,457.90 and 3,187.38

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Solution

The fourth proportional to 4,678.88, 6,457.90 and 3,187.38 is: 4,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.88 : 6,457.90 = 3,187.38 : x
  2. Step 2: Convert to fraction form
    4,678.88/6,457.90 = 3,187.38/x
  3. Step 3: Cross multiply
    4,678.88x = 6,457.90 × 3,187.38
  4. Step 4: Simplify right side
    4,678.88x = 20,583,773.33
  5. Step 5: Solve for x
    x = 20,583,773.33/4,678.88
  6. Step 6: Final answer
    x = 4,399.30

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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.