Home / 1,930.28-2,894.34-631.04

Finding the Fourth Proportional to 1,930.28, 2,894.34 and 631.04

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Solution

The fourth proportional to 1,930.28, 2,894.34 and 631.04 is: 946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.28 : 2,894.34 = 631.04 : x
  2. Step 2: Convert to fraction form
    1,930.28/2,894.34 = 631.04/x
  3. Step 3: Cross multiply
    1,930.28x = 2,894.34 × 631.04
  4. Step 4: Simplify right side
    1,930.28x = 1,826,444.31
  5. Step 5: Solve for x
    x = 1,826,444.31/1,930.28
  6. Step 6: Final answer
    x = 946.21

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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.