Home / 2,215.40-3,323.27-571.95

Finding the Fourth Proportional to 2,215.40, 3,323.27 and 571.95

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Solution

The fourth proportional to 2,215.40, 3,323.27 and 571.95 is: 857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.40 : 3,323.27 = 571.95 : x
  2. Step 2: Convert to fraction form
    2,215.40/3,323.27 = 571.95/x
  3. Step 3: Cross multiply
    2,215.40x = 3,323.27 × 571.95
  4. Step 4: Simplify right side
    2,215.40x = 1,900,727.66
  5. Step 5: Solve for x
    x = 1,900,727.66/2,215.40
  6. Step 6: Final answer
    x = 857.96

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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.