Home / 5,076.36-7,613.66-1,378.89

Finding the Fourth Proportional to 5,076.36, 7,613.66 and 1,378.89

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Solution

The fourth proportional to 5,076.36, 7,613.66 and 1,378.89 is: 2,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.36 : 7,613.66 = 1,378.89 : x
  2. Step 2: Convert to fraction form
    5,076.36/7,613.66 = 1,378.89/x
  3. Step 3: Cross multiply
    5,076.36x = 7,613.66 × 1,378.89
  4. Step 4: Simplify right side
    5,076.36x = 10,498,377.12
  5. Step 5: Solve for x
    x = 10,498,377.12/5,076.36
  6. Step 6: Final answer
    x = 2,068.09

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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.