Home / 5,614.98-8,421.78-1,917.58

Finding the Fourth Proportional to 5,614.98, 8,421.78 and 1,917.58

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Solution

The fourth proportional to 5,614.98, 8,421.78 and 1,917.58 is: 2,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.98 : 8,421.78 = 1,917.58 : x
  2. Step 2: Convert to fraction form
    5,614.98/8,421.78 = 1,917.58/x
  3. Step 3: Cross multiply
    5,614.98x = 8,421.78 × 1,917.58
  4. Step 4: Simplify right side
    5,614.98x = 16,149,436.89
  5. Step 5: Solve for x
    x = 16,149,436.89/5,614.98
  6. Step 6: Final answer
    x = 2,876.13

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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.