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Finding the Fourth Proportional to 2,847.44, 4,271.16 and 899.28

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Solution

The fourth proportional to 2,847.44, 4,271.16 and 899.28 is: 1,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.44 : 4,271.16 = 899.28 : x
  2. Step 2: Convert to fraction form
    2,847.44/4,271.16 = 899.28/x
  3. Step 3: Cross multiply
    2,847.44x = 4,271.16 × 899.28
  4. Step 4: Simplify right side
    2,847.44x = 3,840,968.76
  5. Step 5: Solve for x
    x = 3,840,968.76/2,847.44
  6. Step 6: Final answer
    x = 1,348.92

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Similar ratio
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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.