Home / 7,774.64-11,666.68-3,157.52

Finding the Fourth Proportional to 7,774.64, 11,666.68 and 3,157.52

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Solution

The fourth proportional to 7,774.64, 11,666.68 and 3,157.52 is: 4,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.64 : 11,666.68 = 3,157.52 : x
  2. Step 2: Convert to fraction form
    7,774.64/11,666.68 = 3,157.52/x
  3. Step 3: Cross multiply
    7,774.64x = 11,666.68 × 3,157.52
  4. Step 4: Simplify right side
    7,774.64x = 36,837,775.43
  5. Step 5: Solve for x
    x = 36,837,775.43/7,774.64
  6. Step 6: Final answer
    x = 4,738.20

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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.