Home / 3,030.12-4,178.32-2,399.62

Finding the Fourth Proportional to 3,030.12, 4,178.32 and 2,399.62

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Solution

The fourth proportional to 3,030.12, 4,178.32 and 2,399.62 is: 3,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.12 : 4,178.32 = 2,399.62 : x
  2. Step 2: Convert to fraction form
    3,030.12/4,178.32 = 2,399.62/x
  3. Step 3: Cross multiply
    3,030.12x = 4,178.32 × 2,399.62
  4. Step 4: Simplify right side
    3,030.12x = 10,026,380.24
  5. Step 5: Solve for x
    x = 10,026,380.24/3,030.12
  6. Step 6: Final answer
    x = 3,308.91

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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.