Home / 3,488.96-4,815.06-1,917.34

Finding the Fourth Proportional to 3,488.96, 4,815.06 and 1,917.34

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Solution

The fourth proportional to 3,488.96, 4,815.06 and 1,917.34 is: 2,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.96 : 4,815.06 = 1,917.34 : x
  2. Step 2: Convert to fraction form
    3,488.96/4,815.06 = 1,917.34/x
  3. Step 3: Cross multiply
    3,488.96x = 4,815.06 × 1,917.34
  4. Step 4: Simplify right side
    3,488.96x = 9,232,107.14
  5. Step 5: Solve for x
    x = 9,232,107.14/3,488.96
  6. Step 6: Final answer
    x = 2,646.09

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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.