Home / 3,519.86-5,280.69-1,439.17

Finding the Fourth Proportional to 3,519.86, 5,280.69 and 1,439.17

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Solution

The fourth proportional to 3,519.86, 5,280.69 and 1,439.17 is: 2,159.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.86 : 5,280.69 = 1,439.17 : x
  2. Step 2: Convert to fraction form
    3,519.86/5,280.69 = 1,439.17/x
  3. Step 3: Cross multiply
    3,519.86x = 5,280.69 × 1,439.17
  4. Step 4: Simplify right side
    3,519.86x = 7,599,802.82
  5. Step 5: Solve for x
    x = 7,599,802.82/3,519.86
  6. Step 6: Final answer
    x = 2,159.12

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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.