Home / 4,784.28-7,176.69-2,189.04

Finding the Fourth Proportional to 4,784.28, 7,176.69 and 2,189.04

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Solution

The fourth proportional to 4,784.28, 7,176.69 and 2,189.04 is: 3,283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.28 : 7,176.69 = 2,189.04 : x
  2. Step 2: Convert to fraction form
    4,784.28/7,176.69 = 2,189.04/x
  3. Step 3: Cross multiply
    4,784.28x = 7,176.69 × 2,189.04
  4. Step 4: Simplify right side
    4,784.28x = 15,710,061.48
  5. Step 5: Solve for x
    x = 15,710,061.48/4,784.28
  6. Step 6: Final answer
    x = 3,283.68

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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.