Home / 3,887.72-5,364.90-2,295.40

Finding the Fourth Proportional to 3,887.72, 5,364.90 and 2,295.40

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Solution

The fourth proportional to 3,887.72, 5,364.90 and 2,295.40 is: 3,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.72 : 5,364.90 = 2,295.40 : x
  2. Step 2: Convert to fraction form
    3,887.72/5,364.90 = 2,295.40/x
  3. Step 3: Cross multiply
    3,887.72x = 5,364.90 × 2,295.40
  4. Step 4: Simplify right side
    3,887.72x = 12,314,591.46
  5. Step 5: Solve for x
    x = 12,314,591.46/3,887.72
  6. Step 6: Final answer
    x = 3,167.56

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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.