Home / 4,287.72-5,916.96-2,399.40

Finding the Fourth Proportional to 4,287.72, 5,916.96 and 2,399.40

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Solution

The fourth proportional to 4,287.72, 5,916.96 and 2,399.40 is: 3,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.72 : 5,916.96 = 2,399.40 : x
  2. Step 2: Convert to fraction form
    4,287.72/5,916.96 = 2,399.40/x
  3. Step 3: Cross multiply
    4,287.72x = 5,916.96 × 2,399.40
  4. Step 4: Simplify right side
    4,287.72x = 14,197,153.82
  5. Step 5: Solve for x
    x = 14,197,153.82/4,287.72
  6. Step 6: Final answer
    x = 3,311.12

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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.