Home / 1,960.84-2,935.77-1,439.20

Finding the Fourth Proportional to 1,960.84, 2,935.77 and 1,439.20

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Solution

The fourth proportional to 1,960.84, 2,935.77 and 1,439.20 is: 2,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.84 : 2,935.77 = 1,439.20 : x
  2. Step 2: Convert to fraction form
    1,960.84/2,935.77 = 1,439.20/x
  3. Step 3: Cross multiply
    1,960.84x = 2,935.77 × 1,439.20
  4. Step 4: Simplify right side
    1,960.84x = 4,225,160.18
  5. Step 5: Solve for x
    x = 4,225,160.18/1,960.84
  6. Step 6: Final answer
    x = 2,154.77

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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.