Home / 4,278.03-6,418.80-1,937.40

Finding the Fourth Proportional to 4,278.03, 6,418.80 and 1,937.40

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Solution

The fourth proportional to 4,278.03, 6,418.80 and 1,937.40 is: 2,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.03 : 6,418.80 = 1,937.40 : x
  2. Step 2: Convert to fraction form
    4,278.03/6,418.80 = 1,937.40/x
  3. Step 3: Cross multiply
    4,278.03x = 6,418.80 × 1,937.40
  4. Step 4: Simplify right side
    4,278.03x = 12,435,783.12
  5. Step 5: Solve for x
    x = 12,435,783.12/4,278.03
  6. Step 6: Final answer
    x = 2,906.89

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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.