Home / 2,960.84-4,087.14-1,781.70

Finding the Fourth Proportional to 2,960.84, 4,087.14 and 1,781.70

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Solution

The fourth proportional to 2,960.84, 4,087.14 and 1,781.70 is: 2,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.84 : 4,087.14 = 1,781.70 : x
  2. Step 2: Convert to fraction form
    2,960.84/4,087.14 = 1,781.70/x
  3. Step 3: Cross multiply
    2,960.84x = 4,087.14 × 1,781.70
  4. Step 4: Simplify right side
    2,960.84x = 7,282,057.34
  5. Step 5: Solve for x
    x = 7,282,057.34/2,960.84
  6. Step 6: Final answer
    x = 2,459.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.