Home / 2,748.41-4,122.21-899.72

Finding the Fourth Proportional to 2,748.41, 4,122.21 and 899.72

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Solution

The fourth proportional to 2,748.41, 4,122.21 and 899.72 is: 1,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.41 : 4,122.21 = 899.72 : x
  2. Step 2: Convert to fraction form
    2,748.41/4,122.21 = 899.72/x
  3. Step 3: Cross multiply
    2,748.41x = 4,122.21 × 899.72
  4. Step 4: Simplify right side
    2,748.41x = 3,708,834.78
  5. Step 5: Solve for x
    x = 3,708,834.78/2,748.41
  6. Step 6: Final answer
    x = 1,349.45

Related Problems

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Half scale
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Double scale
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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.