Home / 1,928.76-2,666.70-1,730.04

Finding the Fourth Proportional to 1,928.76, 2,666.70 and 1,730.04

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Solution

The fourth proportional to 1,928.76, 2,666.70 and 1,730.04 is: 2,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.76 : 2,666.70 = 1,730.04 : x
  2. Step 2: Convert to fraction form
    1,928.76/2,666.70 = 1,730.04/x
  3. Step 3: Cross multiply
    1,928.76x = 2,666.70 × 1,730.04
  4. Step 4: Simplify right side
    1,928.76x = 4,613,497.67
  5. Step 5: Solve for x
    x = 4,613,497.67/1,928.76
  6. Step 6: Final answer
    x = 2,391.95

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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.