Home / 5,175.10-7,141.64-2,817.24

Finding the Fourth Proportional to 5,175.10, 7,141.64 and 2,817.24

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Solution

The fourth proportional to 5,175.10, 7,141.64 and 2,817.24 is: 3,887.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.10 : 7,141.64 = 2,817.24 : x
  2. Step 2: Convert to fraction form
    5,175.10/7,141.64 = 2,817.24/x
  3. Step 3: Cross multiply
    5,175.10x = 7,141.64 × 2,817.24
  4. Step 4: Simplify right side
    5,175.10x = 20,119,699.79
  5. Step 5: Solve for x
    x = 20,119,699.79/5,175.10
  6. Step 6: Final answer
    x = 3,887.79

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1.5x scale

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.