Home / 2,215.08-3,322.59-571.49

Finding the Fourth Proportional to 2,215.08, 3,322.59 and 571.49

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Solution

The fourth proportional to 2,215.08, 3,322.59 and 571.49 is: 857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.08 : 3,322.59 = 571.49 : x
  2. Step 2: Convert to fraction form
    2,215.08/3,322.59 = 571.49/x
  3. Step 3: Cross multiply
    2,215.08x = 3,322.59 × 571.49
  4. Step 4: Simplify right side
    2,215.08x = 1,898,820.66
  5. Step 5: Solve for x
    x = 1,898,820.66/2,215.08
  6. Step 6: Final answer
    x = 857.22

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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.