Home / 3,618.69-5,423.90-1,535.64

Finding the Fourth Proportional to 3,618.69, 5,423.90 and 1,535.64

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Solution

The fourth proportional to 3,618.69, 5,423.90 and 1,535.64 is: 2,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.69 : 5,423.90 = 1,535.64 : x
  2. Step 2: Convert to fraction form
    3,618.69/5,423.90 = 1,535.64/x
  3. Step 3: Cross multiply
    3,618.69x = 5,423.90 × 1,535.64
  4. Step 4: Simplify right side
    3,618.69x = 8,329,150.12
  5. Step 5: Solve for x
    x = 8,329,150.12/3,618.69
  6. Step 6: Final answer
    x = 2,301.70

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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.