Home / 3,171.36-4,376.56-1,774.10

Finding the Fourth Proportional to 3,171.36, 4,376.56 and 1,774.10

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Solution

The fourth proportional to 3,171.36, 4,376.56 and 1,774.10 is: 2,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.36 : 4,376.56 = 1,774.10 : x
  2. Step 2: Convert to fraction form
    3,171.36/4,376.56 = 1,774.10/x
  3. Step 3: Cross multiply
    3,171.36x = 4,376.56 × 1,774.10
  4. Step 4: Simplify right side
    3,171.36x = 7,764,455.10
  5. Step 5: Solve for x
    x = 7,764,455.10/3,171.36
  6. Step 6: Final answer
    x = 2,448.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.