Home / 4,478.20-6,717.38-1,556.58

Finding the Fourth Proportional to 4,478.20, 6,717.38 and 1,556.58

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Solution

The fourth proportional to 4,478.20, 6,717.38 and 1,556.58 is: 2,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.20 : 6,717.38 = 1,556.58 : x
  2. Step 2: Convert to fraction form
    4,478.20/6,717.38 = 1,556.58/x
  3. Step 3: Cross multiply
    4,478.20x = 6,717.38 × 1,556.58
  4. Step 4: Simplify right side
    4,478.20x = 10,456,139.36
  5. Step 5: Solve for x
    x = 10,456,139.36/4,478.20
  6. Step 6: Final answer
    x = 2,334.90

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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.