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Finding the Fourth Proportional to 2,564.01, 3,845.96 and 715.05

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Solution

The fourth proportional to 2,564.01, 3,845.96 and 715.05 is: 1,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564.01 : 3,845.96 = 715.05 : x
  2. Step 2: Convert to fraction form
    2,564.01/3,845.96 = 715.05/x
  3. Step 3: Cross multiply
    2,564.01x = 3,845.96 × 715.05
  4. Step 4: Simplify right side
    2,564.01x = 2,750,050.12
  5. Step 5: Solve for x
    x = 2,750,050.12/2,564.01
  6. Step 6: Final answer
    x = 1,072.56

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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.