Home / 5,674.20-7,829.64-3,155.81

Finding the Fourth Proportional to 5,674.20, 7,829.64 and 3,155.81

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Solution

The fourth proportional to 5,674.20, 7,829.64 and 3,155.81 is: 4,354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.20 : 7,829.64 = 3,155.81 : x
  2. Step 2: Convert to fraction form
    5,674.20/7,829.64 = 3,155.81/x
  3. Step 3: Cross multiply
    5,674.20x = 7,829.64 × 3,155.81
  4. Step 4: Simplify right side
    5,674.20x = 24,708,817.06
  5. Step 5: Solve for x
    x = 24,708,817.06/5,674.20
  6. Step 6: Final answer
    x = 4,354.59

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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.