Home / 5,139.62-7,709.42-1,244.02

Finding the Fourth Proportional to 5,139.62, 7,709.42 and 1,244.02

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Solution

The fourth proportional to 5,139.62, 7,709.42 and 1,244.02 is: 1,866.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.62 : 7,709.42 = 1,244.02 : x
  2. Step 2: Convert to fraction form
    5,139.62/7,709.42 = 1,244.02/x
  3. Step 3: Cross multiply
    5,139.62x = 7,709.42 × 1,244.02
  4. Step 4: Simplify right side
    5,139.62x = 9,590,666.45
  5. Step 5: Solve for x
    x = 9,590,666.45/5,139.62
  6. Step 6: Final answer
    x = 1,866.03

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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.