Home / 3,131.40-4,318.68-2,533.62

Finding the Fourth Proportional to 3,131.40, 4,318.68 and 2,533.62

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Solution

The fourth proportional to 3,131.40, 4,318.68 and 2,533.62 is: 3,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.40 : 4,318.68 = 2,533.62 : x
  2. Step 2: Convert to fraction form
    3,131.40/4,318.68 = 2,533.62/x
  3. Step 3: Cross multiply
    3,131.40x = 4,318.68 × 2,533.62
  4. Step 4: Simplify right side
    3,131.40x = 10,941,894.02
  5. Step 5: Solve for x
    x = 10,941,894.02/3,131.40
  6. Step 6: Final answer
    x = 3,494.25

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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.