Home / 2,155.28-3,232.11-1,698.44

Finding the Fourth Proportional to 2,155.28, 3,232.11 and 1,698.44

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Solution

The fourth proportional to 2,155.28, 3,232.11 and 1,698.44 is: 2,547.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.28 : 3,232.11 = 1,698.44 : x
  2. Step 2: Convert to fraction form
    2,155.28/3,232.11 = 1,698.44/x
  3. Step 3: Cross multiply
    2,155.28x = 3,232.11 × 1,698.44
  4. Step 4: Simplify right side
    2,155.28x = 5,489,544.91
  5. Step 5: Solve for x
    x = 5,489,544.91/2,155.28
  6. Step 6: Final answer
    x = 2,547.02

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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.