Home / 1,930.27-2,895.87-631.75

Finding the Fourth Proportional to 1,930.27, 2,895.87 and 631.75

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Solution

The fourth proportional to 1,930.27, 2,895.87 and 631.75 is: 947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.27 : 2,895.87 = 631.75 : x
  2. Step 2: Convert to fraction form
    1,930.27/2,895.87 = 631.75/x
  3. Step 3: Cross multiply
    1,930.27x = 2,895.87 × 631.75
  4. Step 4: Simplify right side
    1,930.27x = 1,829,465.87
  5. Step 5: Solve for x
    x = 1,829,465.87/1,930.27
  6. Step 6: Final answer
    x = 947.78

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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.