Home / 7,887.21-11,830.35-2,956.44

Finding the Fourth Proportional to 7,887.21, 11,830.35 and 2,956.44

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Solution

The fourth proportional to 7,887.21, 11,830.35 and 2,956.44 is: 4,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.21 : 11,830.35 = 2,956.44 : x
  2. Step 2: Convert to fraction form
    7,887.21/11,830.35 = 2,956.44/x
  3. Step 3: Cross multiply
    7,887.21x = 11,830.35 × 2,956.44
  4. Step 4: Simplify right side
    7,887.21x = 34,975,719.95
  5. Step 5: Solve for x
    x = 34,975,719.95/7,887.21
  6. Step 6: Final answer
    x = 4,434.49

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1.5x scale

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.