Home / 4,089.38-6,131.84-1,277.45

Finding the Fourth Proportional to 4,089.38, 6,131.84 and 1,277.45

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Solution

The fourth proportional to 4,089.38, 6,131.84 and 1,277.45 is: 1,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.38 : 6,131.84 = 1,277.45 : x
  2. Step 2: Convert to fraction form
    4,089.38/6,131.84 = 1,277.45/x
  3. Step 3: Cross multiply
    4,089.38x = 6,131.84 × 1,277.45
  4. Step 4: Simplify right side
    4,089.38x = 7,833,081.96
  5. Step 5: Solve for x
    x = 7,833,081.96/4,089.38
  6. Step 6: Final answer
    x = 1,915.47

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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.