Home / 7,077.66-10,617.21-2,919.42

Finding the Fourth Proportional to 7,077.66, 10,617.21 and 2,919.42

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Solution

The fourth proportional to 7,077.66, 10,617.21 and 2,919.42 is: 4,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.66 : 10,617.21 = 2,919.42 : x
  2. Step 2: Convert to fraction form
    7,077.66/10,617.21 = 2,919.42/x
  3. Step 3: Cross multiply
    7,077.66x = 10,617.21 × 2,919.42
  4. Step 4: Simplify right side
    7,077.66x = 30,996,095.22
  5. Step 5: Solve for x
    x = 30,996,095.22/7,077.66
  6. Step 6: Final answer
    x = 4,379.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.