Home / 2,705.78-4,056.39-1,147.01

Finding the Fourth Proportional to 2,705.78, 4,056.39 and 1,147.01

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Solution

The fourth proportional to 2,705.78, 4,056.39 and 1,147.01 is: 1,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.78 : 4,056.39 = 1,147.01 : x
  2. Step 2: Convert to fraction form
    2,705.78/4,056.39 = 1,147.01/x
  3. Step 3: Cross multiply
    2,705.78x = 4,056.39 × 1,147.01
  4. Step 4: Simplify right side
    2,705.78x = 4,652,699.61
  5. Step 5: Solve for x
    x = 4,652,699.61/2,705.78
  6. Step 6: Final answer
    x = 1,719.54

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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.