Home / 5,311.76-7,330.38-3,074.34

Finding the Fourth Proportional to 5,311.76, 7,330.38 and 3,074.34

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Solution

The fourth proportional to 5,311.76, 7,330.38 and 3,074.34 is: 4,242.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.76 : 7,330.38 = 3,074.34 : x
  2. Step 2: Convert to fraction form
    5,311.76/7,330.38 = 3,074.34/x
  3. Step 3: Cross multiply
    5,311.76x = 7,330.38 × 3,074.34
  4. Step 4: Simplify right side
    5,311.76x = 22,536,080.45
  5. Step 5: Solve for x
    x = 22,536,080.45/5,311.76
  6. Step 6: Final answer
    x = 4,242.68

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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.