Home / 5,376.84-8,064.33-1,428.13

Finding the Fourth Proportional to 5,376.84, 8,064.33 and 1,428.13

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Solution

The fourth proportional to 5,376.84, 8,064.33 and 1,428.13 is: 2,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.84 : 8,064.33 = 1,428.13 : x
  2. Step 2: Convert to fraction form
    5,376.84/8,064.33 = 1,428.13/x
  3. Step 3: Cross multiply
    5,376.84x = 8,064.33 × 1,428.13
  4. Step 4: Simplify right side
    5,376.84x = 11,516,911.60
  5. Step 5: Solve for x
    x = 11,516,911.60/5,376.84
  6. Step 6: Final answer
    x = 2,141.95

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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.