Home / 5,851.62-8,780.90-2,156.42

Finding the Fourth Proportional to 5,851.62, 8,780.90 and 2,156.42

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Solution

The fourth proportional to 5,851.62, 8,780.90 and 2,156.42 is: 3,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,851.62 : 8,780.90 = 2,156.42 : x
  2. Step 2: Convert to fraction form
    5,851.62/8,780.90 = 2,156.42/x
  3. Step 3: Cross multiply
    5,851.62x = 8,780.90 × 2,156.42
  4. Step 4: Simplify right side
    5,851.62x = 18,935,319.55
  5. Step 5: Solve for x
    x = 18,935,319.55/5,851.62
  6. Step 6: Final answer
    x = 3,235.91

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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.