Home / 3,493.53-4,820.85-2,166.75

Finding the Fourth Proportional to 3,493.53, 4,820.85 and 2,166.75

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Solution

The fourth proportional to 3,493.53, 4,820.85 and 2,166.75 is: 2,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.53 : 4,820.85 = 2,166.75 : x
  2. Step 2: Convert to fraction form
    3,493.53/4,820.85 = 2,166.75/x
  3. Step 3: Cross multiply
    3,493.53x = 4,820.85 × 2,166.75
  4. Step 4: Simplify right side
    3,493.53x = 10,445,576.74
  5. Step 5: Solve for x
    x = 10,445,576.74/3,493.53
  6. Step 6: Final answer
    x = 2,989.98

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.