Home / 7,640.42-11,457.90-4,133.02

Finding the Fourth Proportional to 7,640.42, 11,457.90 and 4,133.02

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Solution

The fourth proportional to 7,640.42, 11,457.90 and 4,133.02 is: 6,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.42 : 11,457.90 = 4,133.02 : x
  2. Step 2: Convert to fraction form
    7,640.42/11,457.90 = 4,133.02/x
  3. Step 3: Cross multiply
    7,640.42x = 11,457.90 × 4,133.02
  4. Step 4: Simplify right side
    7,640.42x = 47,355,709.19
  5. Step 5: Solve for x
    x = 47,355,709.19/7,640.42
  6. Step 6: Final answer
    x = 6,198.05

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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.