Home / 1,685.03-2,325.27-938.96

Finding the Fourth Proportional to 1,685.03, 2,325.27 and 938.96

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Solution

The fourth proportional to 1,685.03, 2,325.27 and 938.96 is: 1,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.03 : 2,325.27 = 938.96 : x
  2. Step 2: Convert to fraction form
    1,685.03/2,325.27 = 938.96/x
  3. Step 3: Cross multiply
    1,685.03x = 2,325.27 × 938.96
  4. Step 4: Simplify right side
    1,685.03x = 2,183,335.52
  5. Step 5: Solve for x
    x = 2,183,335.52/1,685.03
  6. Step 6: Final answer
    x = 1,295.73

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1.5x scale

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.