Home / 4,087.84-6,131.76-1,314.74

Finding the Fourth Proportional to 4,087.84, 6,131.76 and 1,314.74

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Solution

The fourth proportional to 4,087.84, 6,131.76 and 1,314.74 is: 1,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.84 : 6,131.76 = 1,314.74 : x
  2. Step 2: Convert to fraction form
    4,087.84/6,131.76 = 1,314.74/x
  3. Step 3: Cross multiply
    4,087.84x = 6,131.76 × 1,314.74
  4. Step 4: Simplify right side
    4,087.84x = 8,061,670.14
  5. Step 5: Solve for x
    x = 8,061,670.14/4,087.84
  6. Step 6: Final answer
    x = 1,972.11

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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.