Home / 2,815.74-4,221.47-1,704.92

Finding the Fourth Proportional to 2,815.74, 4,221.47 and 1,704.92

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Solution

The fourth proportional to 2,815.74, 4,221.47 and 1,704.92 is: 2,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.74 : 4,221.47 = 1,704.92 : x
  2. Step 2: Convert to fraction form
    2,815.74/4,221.47 = 1,704.92/x
  3. Step 3: Cross multiply
    2,815.74x = 4,221.47 × 1,704.92
  4. Step 4: Simplify right side
    2,815.74x = 7,197,260.11
  5. Step 5: Solve for x
    x = 7,197,260.11/2,815.74
  6. Step 6: Final answer
    x = 2,556.08

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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.