Home / 4,421.65-6,101.75-2,405

Finding the Fourth Proportional to 4,421.65, 6,101.75 and 2,405

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Solution

The fourth proportional to 4,421.65, 6,101.75 and 2,405 is: 3,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.65 : 6,101.75 = 2,405 : x
  2. Step 2: Convert to fraction form
    4,421.65/6,101.75 = 2,405/x
  3. Step 3: Cross multiply
    4,421.65x = 6,101.75 × 2,405
  4. Step 4: Simplify right side
    4,421.65x = 14,674,708.75
  5. Step 5: Solve for x
    x = 14,674,708.75/4,421.65
  6. Step 6: Final answer
    x = 3,318.83

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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.