Home / 4,867.72-7,301.64-1,405

Finding the Fourth Proportional to 4,867.72, 7,301.64 and 1,405

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Solution

The fourth proportional to 4,867.72, 7,301.64 and 1,405 is: 2,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,867.72 : 7,301.64 = 1,405 : x
  2. Step 2: Convert to fraction form
    4,867.72/7,301.64 = 1,405/x
  3. Step 3: Cross multiply
    4,867.72x = 7,301.64 × 1,405
  4. Step 4: Simplify right side
    4,867.72x = 10,258,804.20
  5. Step 5: Solve for x
    x = 10,258,804.20/4,867.72
  6. Step 6: Final answer
    x = 2,107.52

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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.