Home / 7,242.72-10,856.73-2,561.63

Finding the Fourth Proportional to 7,242.72, 10,856.73 and 2,561.63

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Solution

The fourth proportional to 7,242.72, 10,856.73 and 2,561.63 is: 3,839.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.72 : 10,856.73 = 2,561.63 : x
  2. Step 2: Convert to fraction form
    7,242.72/10,856.73 = 2,561.63/x
  3. Step 3: Cross multiply
    7,242.72x = 10,856.73 × 2,561.63
  4. Step 4: Simplify right side
    7,242.72x = 27,810,880.59
  5. Step 5: Solve for x
    x = 27,810,880.59/7,242.72
  6. Step 6: Final answer
    x = 3,839.84

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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.