Home / 5,125.64-7,074.05-2,887.94

Finding the Fourth Proportional to 5,125.64, 7,074.05 and 2,887.94

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Solution

The fourth proportional to 5,125.64, 7,074.05 and 2,887.94 is: 3,985.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.64 : 7,074.05 = 2,887.94 : x
  2. Step 2: Convert to fraction form
    5,125.64/7,074.05 = 2,887.94/x
  3. Step 3: Cross multiply
    5,125.64x = 7,074.05 × 2,887.94
  4. Step 4: Simplify right side
    5,125.64x = 20,429,382.15
  5. Step 5: Solve for x
    x = 20,429,382.15/5,125.64
  6. Step 6: Final answer
    x = 3,985.73

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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.