Home / 2,310.21-3,187.00-1,679.57

Finding the Fourth Proportional to 2,310.21, 3,187.00 and 1,679.57

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Solution

The fourth proportional to 2,310.21, 3,187.00 and 1,679.57 is: 2,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.21 : 3,187.00 = 1,679.57 : x
  2. Step 2: Convert to fraction form
    2,310.21/3,187.00 = 1,679.57/x
  3. Step 3: Cross multiply
    2,310.21x = 3,187.00 × 1,679.57
  4. Step 4: Simplify right side
    2,310.21x = 5,352,787.71
  5. Step 5: Solve for x
    x = 5,352,787.71/2,310.21
  6. Step 6: Final answer
    x = 2,317.01

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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.