Home / 3,658.32-5,488.43-1,318.23

Finding the Fourth Proportional to 3,658.32, 5,488.43 and 1,318.23

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Solution

The fourth proportional to 3,658.32, 5,488.43 and 1,318.23 is: 1,977.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.32 : 5,488.43 = 1,318.23 : x
  2. Step 2: Convert to fraction form
    3,658.32/5,488.43 = 1,318.23/x
  3. Step 3: Cross multiply
    3,658.32x = 5,488.43 × 1,318.23
  4. Step 4: Simplify right side
    3,658.32x = 7,235,006.49
  5. Step 5: Solve for x
    x = 7,235,006.49/3,658.32
  6. Step 6: Final answer
    x = 1,977.69

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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.