Home / 2,698.68-4,056.98-2,215.32

Finding the Fourth Proportional to 2,698.68, 4,056.98 and 2,215.32

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Solution

The fourth proportional to 2,698.68, 4,056.98 and 2,215.32 is: 3,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.68 : 4,056.98 = 2,215.32 : x
  2. Step 2: Convert to fraction form
    2,698.68/4,056.98 = 2,215.32/x
  3. Step 3: Cross multiply
    2,698.68x = 4,056.98 × 2,215.32
  4. Step 4: Simplify right side
    2,698.68x = 8,987,508.93
  5. Step 5: Solve for x
    x = 8,987,508.93/2,698.68
  6. Step 6: Final answer
    x = 3,330.34

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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.