Home / 5,428.66-8,139.24-2,307.90

Finding the Fourth Proportional to 5,428.66, 8,139.24 and 2,307.90

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Solution

The fourth proportional to 5,428.66, 8,139.24 and 2,307.90 is: 3,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.66 : 8,139.24 = 2,307.90 : x
  2. Step 2: Convert to fraction form
    5,428.66/8,139.24 = 2,307.90/x
  3. Step 3: Cross multiply
    5,428.66x = 8,139.24 × 2,307.90
  4. Step 4: Simplify right side
    5,428.66x = 18,784,552.00
  5. Step 5: Solve for x
    x = 18,784,552.00/5,428.66
  6. Step 6: Final answer
    x = 3,460.26

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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.