Home / 3,140.56-4,710.60-1,291.16

Finding the Fourth Proportional to 3,140.56, 4,710.60 and 1,291.16

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Solution

The fourth proportional to 3,140.56, 4,710.60 and 1,291.16 is: 1,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.56 : 4,710.60 = 1,291.16 : x
  2. Step 2: Convert to fraction form
    3,140.56/4,710.60 = 1,291.16/x
  3. Step 3: Cross multiply
    3,140.56x = 4,710.60 × 1,291.16
  4. Step 4: Simplify right side
    3,140.56x = 6,082,138.30
  5. Step 5: Solve for x
    x = 6,082,138.30/3,140.56
  6. Step 6: Final answer
    x = 1,936.64

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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.