Home / 5,307.87-7,961.77-1,359.12

Finding the Fourth Proportional to 5,307.87, 7,961.77 and 1,359.12

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Solution

The fourth proportional to 5,307.87, 7,961.77 and 1,359.12 is: 2,038.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.87 : 7,961.77 = 1,359.12 : x
  2. Step 2: Convert to fraction form
    5,307.87/7,961.77 = 1,359.12/x
  3. Step 3: Cross multiply
    5,307.87x = 7,961.77 × 1,359.12
  4. Step 4: Simplify right side
    5,307.87x = 10,820,954.24
  5. Step 5: Solve for x
    x = 10,820,954.24/5,307.87
  6. Step 6: Final answer
    x = 2,038.66

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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.