Home / 3,140.32-4,710.64-1,192.68

Finding the Fourth Proportional to 3,140.32, 4,710.64 and 1,192.68

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Solution

The fourth proportional to 3,140.32, 4,710.64 and 1,192.68 is: 1,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.32 : 4,710.64 = 1,192.68 : x
  2. Step 2: Convert to fraction form
    3,140.32/4,710.64 = 1,192.68/x
  3. Step 3: Cross multiply
    3,140.32x = 4,710.64 × 1,192.68
  4. Step 4: Simplify right side
    3,140.32x = 5,618,286.12
  5. Step 5: Solve for x
    x = 5,618,286.12/3,140.32
  6. Step 6: Final answer
    x = 1,789.08

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1.5x scale

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.