Home / 5,621.33-8,430.39-1,672.42

Finding the Fourth Proportional to 5,621.33, 8,430.39 and 1,672.42

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Solution

The fourth proportional to 5,621.33, 8,430.39 and 1,672.42 is: 2,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.33 : 8,430.39 = 1,672.42 : x
  2. Step 2: Convert to fraction form
    5,621.33/8,430.39 = 1,672.42/x
  3. Step 3: Cross multiply
    5,621.33x = 8,430.39 × 1,672.42
  4. Step 4: Simplify right side
    5,621.33x = 14,099,152.84
  5. Step 5: Solve for x
    x = 14,099,152.84/5,621.33
  6. Step 6: Final answer
    x = 2,508.15

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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.