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Finding the Fourth Proportional to 2,516.13, 3,774.06 and 784.71

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Solution

The fourth proportional to 2,516.13, 3,774.06 and 784.71 is: 1,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.13 : 3,774.06 = 784.71 : x
  2. Step 2: Convert to fraction form
    2,516.13/3,774.06 = 784.71/x
  3. Step 3: Cross multiply
    2,516.13x = 3,774.06 × 784.71
  4. Step 4: Simplify right side
    2,516.13x = 2,961,542.62
  5. Step 5: Solve for x
    x = 2,961,542.62/2,516.13
  6. Step 6: Final answer
    x = 1,177.02

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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.