Home / 6,219.39-8,586.89-4,781.21

Finding the Fourth Proportional to 6,219.39, 8,586.89 and 4,781.21

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Solution

The fourth proportional to 6,219.39, 8,586.89 and 4,781.21 is: 6,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.39 : 8,586.89 = 4,781.21 : x
  2. Step 2: Convert to fraction form
    6,219.39/8,586.89 = 4,781.21/x
  3. Step 3: Cross multiply
    6,219.39x = 8,586.89 × 4,781.21
  4. Step 4: Simplify right side
    6,219.39x = 41,055,657.50
  5. Step 5: Solve for x
    x = 41,055,657.50/6,219.39
  6. Step 6: Final answer
    x = 6,601.24

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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.