Home / 2,928.03-4,039.32-1,808.07

Finding the Fourth Proportional to 2,928.03, 4,039.32 and 1,808.07

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Solution

The fourth proportional to 2,928.03, 4,039.32 and 1,808.07 is: 2,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.03 : 4,039.32 = 1,808.07 : x
  2. Step 2: Convert to fraction form
    2,928.03/4,039.32 = 1,808.07/x
  3. Step 3: Cross multiply
    2,928.03x = 4,039.32 × 1,808.07
  4. Step 4: Simplify right side
    2,928.03x = 7,303,373.31
  5. Step 5: Solve for x
    x = 7,303,373.31/2,928.03
  6. Step 6: Final answer
    x = 2,494.30

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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.