Home / 3,887.42-5,364.51-2,314.40

Finding the Fourth Proportional to 3,887.42, 5,364.51 and 2,314.40

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Solution

The fourth proportional to 3,887.42, 5,364.51 and 2,314.40 is: 3,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.42 : 5,364.51 = 2,314.40 : x
  2. Step 2: Convert to fraction form
    3,887.42/5,364.51 = 2,314.40/x
  3. Step 3: Cross multiply
    3,887.42x = 5,364.51 × 2,314.40
  4. Step 4: Simplify right side
    3,887.42x = 12,415,621.94
  5. Step 5: Solve for x
    x = 12,415,621.94/3,887.42
  6. Step 6: Final answer
    x = 3,193.79

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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.