Home / 2,928.79-4,041.01-1,809.77

Finding the Fourth Proportional to 2,928.79, 4,041.01 and 1,809.77

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Solution

The fourth proportional to 2,928.79, 4,041.01 and 1,809.77 is: 2,497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.79 : 4,041.01 = 1,809.77 : x
  2. Step 2: Convert to fraction form
    2,928.79/4,041.01 = 1,809.77/x
  3. Step 3: Cross multiply
    2,928.79x = 4,041.01 × 1,809.77
  4. Step 4: Simplify right side
    2,928.79x = 7,313,311.03
  5. Step 5: Solve for x
    x = 7,313,311.03/2,928.79
  6. Step 6: Final answer
    x = 2,497.04

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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.