Home / 4,478.80-6,717.36-1,881.76

Finding the Fourth Proportional to 4,478.80, 6,717.36 and 1,881.76

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Solution

The fourth proportional to 4,478.80, 6,717.36 and 1,881.76 is: 2,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.80 : 6,717.36 = 1,881.76 : x
  2. Step 2: Convert to fraction form
    4,478.80/6,717.36 = 1,881.76/x
  3. Step 3: Cross multiply
    4,478.80x = 6,717.36 × 1,881.76
  4. Step 4: Simplify right side
    4,478.80x = 12,640,459.35
  5. Step 5: Solve for x
    x = 12,640,459.35/4,478.80
  6. Step 6: Final answer
    x = 2,822.29

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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.