Home / 5,115.81-7,029.23-4,066.05

Finding the Fourth Proportional to 5,115.81, 7,029.23 and 4,066.05

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Solution

The fourth proportional to 5,115.81, 7,029.23 and 4,066.05 is: 5,586.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.81 : 7,029.23 = 4,066.05 : x
  2. Step 2: Convert to fraction form
    5,115.81/7,029.23 = 4,066.05/x
  3. Step 3: Cross multiply
    5,115.81x = 7,029.23 × 4,066.05
  4. Step 4: Simplify right side
    5,115.81x = 28,581,180.31
  5. Step 5: Solve for x
    x = 28,581,180.31/5,115.81
  6. Step 6: Final answer
    x = 5,586.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.