Home / 4,774.56-7,156.80-2,179.20

Finding the Fourth Proportional to 4,774.56, 7,156.80 and 2,179.20

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Solution

The fourth proportional to 4,774.56, 7,156.80 and 2,179.20 is: 3,266.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.56 : 7,156.80 = 2,179.20 : x
  2. Step 2: Convert to fraction form
    4,774.56/7,156.80 = 2,179.20/x
  3. Step 3: Cross multiply
    4,774.56x = 7,156.80 × 2,179.20
  4. Step 4: Simplify right side
    4,774.56x = 15,596,098.56
  5. Step 5: Solve for x
    x = 15,596,098.56/4,774.56
  6. Step 6: Final answer
    x = 3,266.50

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1.5x scale

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.