Home / 5,088.84-7,635.60-3,139.80

Finding the Fourth Proportional to 5,088.84, 7,635.60 and 3,139.80

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Solution

The fourth proportional to 5,088.84, 7,635.60 and 3,139.80 is: 4,711.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.84 : 7,635.60 = 3,139.80 : x
  2. Step 2: Convert to fraction form
    5,088.84/7,635.60 = 3,139.80/x
  3. Step 3: Cross multiply
    5,088.84x = 7,635.60 × 3,139.80
  4. Step 4: Simplify right side
    5,088.84x = 23,974,256.88
  5. Step 5: Solve for x
    x = 23,974,256.88/5,088.84
  6. Step 6: Final answer
    x = 4,711.14

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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.