Home / 5,154.85-7,731.58-1,457.37

Finding the Fourth Proportional to 5,154.85, 7,731.58 and 1,457.37

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Solution

The fourth proportional to 5,154.85, 7,731.58 and 1,457.37 is: 2,185.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.85 : 7,731.58 = 1,457.37 : x
  2. Step 2: Convert to fraction form
    5,154.85/7,731.58 = 1,457.37/x
  3. Step 3: Cross multiply
    5,154.85x = 7,731.58 × 1,457.37
  4. Step 4: Simplify right side
    5,154.85x = 11,267,769.10
  5. Step 5: Solve for x
    x = 11,267,769.10/5,154.85
  6. Step 6: Final answer
    x = 2,185.86

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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.