Home / 2,215.24-3,320.70-1,886.92

Finding the Fourth Proportional to 2,215.24, 3,320.70 and 1,886.92

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Solution

The fourth proportional to 2,215.24, 3,320.70 and 1,886.92 is: 2,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.24 : 3,320.70 = 1,886.92 : x
  2. Step 2: Convert to fraction form
    2,215.24/3,320.70 = 1,886.92/x
  3. Step 3: Cross multiply
    2,215.24x = 3,320.70 × 1,886.92
  4. Step 4: Simplify right side
    2,215.24x = 6,265,895.24
  5. Step 5: Solve for x
    x = 6,265,895.24/2,215.24
  6. Step 6: Final answer
    x = 2,828.54

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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.