Home / 4,078.38-6,116.76-1,304.40

Finding the Fourth Proportional to 4,078.38, 6,116.76 and 1,304.40

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Solution

The fourth proportional to 4,078.38, 6,116.76 and 1,304.40 is: 1,956.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.38 : 6,116.76 = 1,304.40 : x
  2. Step 2: Convert to fraction form
    4,078.38/6,116.76 = 1,304.40/x
  3. Step 3: Cross multiply
    4,078.38x = 6,116.76 × 1,304.40
  4. Step 4: Simplify right side
    4,078.38x = 7,978,701.74
  5. Step 5: Solve for x
    x = 7,978,701.74/4,078.38
  6. Step 6: Final answer
    x = 1,956.34

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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.