Home / 4,139.75-5,709.85-2,627.76

Finding the Fourth Proportional to 4,139.75, 5,709.85 and 2,627.76

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Solution

The fourth proportional to 4,139.75, 5,709.85 and 2,627.76 is: 3,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.75 : 5,709.85 = 2,627.76 : x
  2. Step 2: Convert to fraction form
    4,139.75/5,709.85 = 2,627.76/x
  3. Step 3: Cross multiply
    4,139.75x = 5,709.85 × 2,627.76
  4. Step 4: Simplify right side
    4,139.75x = 15,004,130.28
  5. Step 5: Solve for x
    x = 15,004,130.28/4,139.75
  6. Step 6: Final answer
    x = 3,624.40

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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.