Home / 1,904.34-2,856.38-605.70

Finding the Fourth Proportional to 1,904.34, 2,856.38 and 605.70

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Solution

The fourth proportional to 1,904.34, 2,856.38 and 605.70 is: 908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.34 : 2,856.38 = 605.70 : x
  2. Step 2: Convert to fraction form
    1,904.34/2,856.38 = 605.70/x
  3. Step 3: Cross multiply
    1,904.34x = 2,856.38 × 605.70
  4. Step 4: Simplify right side
    1,904.34x = 1,730,109.37
  5. Step 5: Solve for x
    x = 1,730,109.37/1,904.34
  6. Step 6: Final answer
    x = 908.51

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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.