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Finding the Fourth Proportional to 2,784.76, 4,176.66 and 732.76

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Solution

The fourth proportional to 2,784.76, 4,176.66 and 732.76 is: 1,099.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.76 : 4,176.66 = 732.76 : x
  2. Step 2: Convert to fraction form
    2,784.76/4,176.66 = 732.76/x
  3. Step 3: Cross multiply
    2,784.76x = 4,176.66 × 732.76
  4. Step 4: Simplify right side
    2,784.76x = 3,060,489.38
  5. Step 5: Solve for x
    x = 3,060,489.38/2,784.76
  6. Step 6: Final answer
    x = 1,099.01

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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.