Home / 1,685.05-2,324.55-1,087.37

Finding the Fourth Proportional to 1,685.05, 2,324.55 and 1,087.37

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Solution

The fourth proportional to 1,685.05, 2,324.55 and 1,087.37 is: 1,500.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.05 : 2,324.55 = 1,087.37 : x
  2. Step 2: Convert to fraction form
    1,685.05/2,324.55 = 1,087.37/x
  3. Step 3: Cross multiply
    1,685.05x = 2,324.55 × 1,087.37
  4. Step 4: Simplify right side
    1,685.05x = 2,527,654.06
  5. Step 5: Solve for x
    x = 2,527,654.06/1,685.05
  6. Step 6: Final answer
    x = 1,500.04

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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.