Home / 3,321.18-4,580.01-2,142.90

Finding the Fourth Proportional to 3,321.18, 4,580.01 and 2,142.90

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Solution

The fourth proportional to 3,321.18, 4,580.01 and 2,142.90 is: 2,955.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.18 : 4,580.01 = 2,142.90 : x
  2. Step 2: Convert to fraction form
    3,321.18/4,580.01 = 2,142.90/x
  3. Step 3: Cross multiply
    3,321.18x = 4,580.01 × 2,142.90
  4. Step 4: Simplify right side
    3,321.18x = 9,814,503.43
  5. Step 5: Solve for x
    x = 9,814,503.43/3,321.18
  6. Step 6: Final answer
    x = 2,955.13

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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.