Home / 5,911.35-8,158.65-3,555.87

Finding the Fourth Proportional to 5,911.35, 8,158.65 and 3,555.87

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Solution

The fourth proportional to 5,911.35, 8,158.65 and 3,555.87 is: 4,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.35 : 8,158.65 = 3,555.87 : x
  2. Step 2: Convert to fraction form
    5,911.35/8,158.65 = 3,555.87/x
  3. Step 3: Cross multiply
    5,911.35x = 8,158.65 × 3,555.87
  4. Step 4: Simplify right side
    5,911.35x = 29,011,098.78
  5. Step 5: Solve for x
    x = 29,011,098.78/5,911.35
  6. Step 6: Final answer
    x = 4,907.69

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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.