Home / 3,661.27-5,488.40-1,688.23

Finding the Fourth Proportional to 3,661.27, 5,488.40 and 1,688.23

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Solution

The fourth proportional to 3,661.27, 5,488.40 and 1,688.23 is: 2,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.27 : 5,488.40 = 1,688.23 : x
  2. Step 2: Convert to fraction form
    3,661.27/5,488.40 = 1,688.23/x
  3. Step 3: Cross multiply
    3,661.27x = 5,488.40 × 1,688.23
  4. Step 4: Simplify right side
    3,661.27x = 9,265,654.09
  5. Step 5: Solve for x
    x = 9,265,654.09/3,661.27
  6. Step 6: Final answer
    x = 2,530.72

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1.5x scale

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.