Home / 2,132.08-2,942.64-1,346.56

Finding the Fourth Proportional to 2,132.08, 2,942.64 and 1,346.56

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Solution

The fourth proportional to 2,132.08, 2,942.64 and 1,346.56 is: 1,858.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.08 : 2,942.64 = 1,346.56 : x
  2. Step 2: Convert to fraction form
    2,132.08/2,942.64 = 1,346.56/x
  3. Step 3: Cross multiply
    2,132.08x = 2,942.64 × 1,346.56
  4. Step 4: Simplify right side
    2,132.08x = 3,962,441.32
  5. Step 5: Solve for x
    x = 3,962,441.32/2,132.08
  6. Step 6: Final answer
    x = 1,858.49

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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.