Home / 2,318.61-3,199.68-1,270.65

Finding the Fourth Proportional to 2,318.61, 3,199.68 and 1,270.65

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Solution

The fourth proportional to 2,318.61, 3,199.68 and 1,270.65 is: 1,753.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.61 : 3,199.68 = 1,270.65 : x
  2. Step 2: Convert to fraction form
    2,318.61/3,199.68 = 1,270.65/x
  3. Step 3: Cross multiply
    2,318.61x = 3,199.68 × 1,270.65
  4. Step 4: Simplify right side
    2,318.61x = 4,065,673.39
  5. Step 5: Solve for x
    x = 4,065,673.39/2,318.61
  6. Step 6: Final answer
    x = 1,753.50

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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.