Home / 4,928.90-7,388.96-1,808.18

Finding the Fourth Proportional to 4,928.90, 7,388.96 and 1,808.18

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Solution

The fourth proportional to 4,928.90, 7,388.96 and 1,808.18 is: 2,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.90 : 7,388.96 = 1,808.18 : x
  2. Step 2: Convert to fraction form
    4,928.90/7,388.96 = 1,808.18/x
  3. Step 3: Cross multiply
    4,928.90x = 7,388.96 × 1,808.18
  4. Step 4: Simplify right side
    4,928.90x = 13,360,551.42
  5. Step 5: Solve for x
    x = 13,360,551.42/4,928.90
  6. Step 6: Final answer
    x = 2,710.65

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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.