Home / 6,219.43-8,580.20-4,119.91

Finding the Fourth Proportional to 6,219.43, 8,580.20 and 4,119.91

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Solution

The fourth proportional to 6,219.43, 8,580.20 and 4,119.91 is: 5,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.43 : 8,580.20 = 4,119.91 : x
  2. Step 2: Convert to fraction form
    6,219.43/8,580.20 = 4,119.91/x
  3. Step 3: Cross multiply
    6,219.43x = 8,580.20 × 4,119.91
  4. Step 4: Simplify right side
    6,219.43x = 35,349,631.18
  5. Step 5: Solve for x
    x = 35,349,631.18/6,219.43
  6. Step 6: Final answer
    x = 5,683.74

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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.