Home / 5,918.91-8,868.57-5,308.43

Finding the Fourth Proportional to 5,918.91, 8,868.57 and 5,308.43

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Solution

The fourth proportional to 5,918.91, 8,868.57 and 5,308.43 is: 7,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.91 : 8,868.57 = 5,308.43 : x
  2. Step 2: Convert to fraction form
    5,918.91/8,868.57 = 5,308.43/x
  3. Step 3: Cross multiply
    5,918.91x = 8,868.57 × 5,308.43
  4. Step 4: Simplify right side
    5,918.91x = 47,078,138.70
  5. Step 5: Solve for x
    x = 47,078,138.70/5,918.91
  6. Step 6: Final answer
    x = 7,953.85

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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.