Home / 7,171.28-10,752.75-2,783.61

Finding the Fourth Proportional to 7,171.28, 10,752.75 and 2,783.61

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Solution

The fourth proportional to 7,171.28, 10,752.75 and 2,783.61 is: 4,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.28 : 10,752.75 = 2,783.61 : x
  2. Step 2: Convert to fraction form
    7,171.28/10,752.75 = 2,783.61/x
  3. Step 3: Cross multiply
    7,171.28x = 10,752.75 × 2,783.61
  4. Step 4: Simplify right side
    7,171.28x = 29,931,462.43
  5. Step 5: Solve for x
    x = 29,931,462.43/7,171.28
  6. Step 6: Final answer
    x = 4,173.80

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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.