Home / 3,221.02-4,829.90-1,575.10

Finding the Fourth Proportional to 3,221.02, 4,829.90 and 1,575.10

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Solution

The fourth proportional to 3,221.02, 4,829.90 and 1,575.10 is: 2,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.02 : 4,829.90 = 1,575.10 : x
  2. Step 2: Convert to fraction form
    3,221.02/4,829.90 = 1,575.10/x
  3. Step 3: Cross multiply
    3,221.02x = 4,829.90 × 1,575.10
  4. Step 4: Simplify right side
    3,221.02x = 7,607,575.49
  5. Step 5: Solve for x
    x = 7,607,575.49/3,221.02
  6. Step 6: Final answer
    x = 2,361.85

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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.