Home / 5,289.62-7,299.58-2,899.78

Finding the Fourth Proportional to 5,289.62, 7,299.58 and 2,899.78

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Solution

The fourth proportional to 5,289.62, 7,299.58 and 2,899.78 is: 4,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.62 : 7,299.58 = 2,899.78 : x
  2. Step 2: Convert to fraction form
    5,289.62/7,299.58 = 2,899.78/x
  3. Step 3: Cross multiply
    5,289.62x = 7,299.58 × 2,899.78
  4. Step 4: Simplify right side
    5,289.62x = 21,167,176.09
  5. Step 5: Solve for x
    x = 21,167,176.09/5,289.62
  6. Step 6: Final answer
    x = 4,001.64

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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.