Home / 4,087.84-6,115.68-3,156.16

Finding the Fourth Proportional to 4,087.84, 6,115.68 and 3,156.16

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Solution

The fourth proportional to 4,087.84, 6,115.68 and 3,156.16 is: 4,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.84 : 6,115.68 = 3,156.16 : x
  2. Step 2: Convert to fraction form
    4,087.84/6,115.68 = 3,156.16/x
  3. Step 3: Cross multiply
    4,087.84x = 6,115.68 × 3,156.16
  4. Step 4: Simplify right side
    4,087.84x = 19,302,064.59
  5. Step 5: Solve for x
    x = 19,302,064.59/4,087.84
  6. Step 6: Final answer
    x = 4,721.82

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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.