Home / 2,040.87-3,043.40-1,928.32

Finding the Fourth Proportional to 2,040.87, 3,043.40 and 1,928.32

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Solution

The fourth proportional to 2,040.87, 3,043.40 and 1,928.32 is: 2,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.87 : 3,043.40 = 1,928.32 : x
  2. Step 2: Convert to fraction form
    2,040.87/3,043.40 = 1,928.32/x
  3. Step 3: Cross multiply
    2,040.87x = 3,043.40 × 1,928.32
  4. Step 4: Simplify right side
    2,040.87x = 5,868,649.09
  5. Step 5: Solve for x
    x = 5,868,649.09/2,040.87
  6. Step 6: Final answer
    x = 2,875.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.