Home / 5,918.75-8,877.78-2,220.67

Finding the Fourth Proportional to 5,918.75, 8,877.78 and 2,220.67

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Solution

The fourth proportional to 5,918.75, 8,877.78 and 2,220.67 is: 3,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.75 : 8,877.78 = 2,220.67 : x
  2. Step 2: Convert to fraction form
    5,918.75/8,877.78 = 2,220.67/x
  3. Step 3: Cross multiply
    5,918.75x = 8,877.78 × 2,220.67
  4. Step 4: Simplify right side
    5,918.75x = 19,714,641.91
  5. Step 5: Solve for x
    x = 19,714,641.91/5,918.75
  6. Step 6: Final answer
    x = 3,330.88

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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.