Home / 2,148.67-3,223.63-899.85

Finding the Fourth Proportional to 2,148.67, 3,223.63 and 899.85

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Solution

The fourth proportional to 2,148.67, 3,223.63 and 899.85 is: 1,350.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.67 : 3,223.63 = 899.85 : x
  2. Step 2: Convert to fraction form
    2,148.67/3,223.63 = 899.85/x
  3. Step 3: Cross multiply
    2,148.67x = 3,223.63 × 899.85
  4. Step 4: Simplify right side
    2,148.67x = 2,900,783.46
  5. Step 5: Solve for x
    x = 2,900,783.46/2,148.67
  6. Step 6: Final answer
    x = 1,350.04

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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.