Home / 5,347.42-7,379.32-2,989.56

Finding the Fourth Proportional to 5,347.42, 7,379.32 and 2,989.56

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Solution

The fourth proportional to 5,347.42, 7,379.32 and 2,989.56 is: 4,125.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.42 : 7,379.32 = 2,989.56 : x
  2. Step 2: Convert to fraction form
    5,347.42/7,379.32 = 2,989.56/x
  3. Step 3: Cross multiply
    5,347.42x = 7,379.32 × 2,989.56
  4. Step 4: Simplify right side
    5,347.42x = 22,060,919.90
  5. Step 5: Solve for x
    x = 22,060,919.90/5,347.42
  6. Step 6: Final answer
    x = 4,125.53

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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.