Home / 4,086.78-6,126.93-1,488.30

Finding the Fourth Proportional to 4,086.78, 6,126.93 and 1,488.30

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Solution

The fourth proportional to 4,086.78, 6,126.93 and 1,488.30 is: 2,231.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.78 : 6,126.93 = 1,488.30 : x
  2. Step 2: Convert to fraction form
    4,086.78/6,126.93 = 1,488.30/x
  3. Step 3: Cross multiply
    4,086.78x = 6,126.93 × 1,488.30
  4. Step 4: Simplify right side
    4,086.78x = 9,118,709.92
  5. Step 5: Solve for x
    x = 9,118,709.92/4,086.78
  6. Step 6: Final answer
    x = 2,231.27

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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.