Home / 3,001.42-4,503.21-2,178.30

Finding the Fourth Proportional to 3,001.42, 4,503.21 and 2,178.30

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Solution

The fourth proportional to 3,001.42, 4,503.21 and 2,178.30 is: 3,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.42 : 4,503.21 = 2,178.30 : x
  2. Step 2: Convert to fraction form
    3,001.42/4,503.21 = 2,178.30/x
  3. Step 3: Cross multiply
    3,001.42x = 4,503.21 × 2,178.30
  4. Step 4: Simplify right side
    3,001.42x = 9,809,342.34
  5. Step 5: Solve for x
    x = 9,809,342.34/3,001.42
  6. Step 6: Final answer
    x = 3,268.23

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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.