Home / 2,192.18-3,288.27-653.06

Finding the Fourth Proportional to 2,192.18, 3,288.27 and 653.06

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Solution

The fourth proportional to 2,192.18, 3,288.27 and 653.06 is: 979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.18 : 3,288.27 = 653.06 : x
  2. Step 2: Convert to fraction form
    2,192.18/3,288.27 = 653.06/x
  3. Step 3: Cross multiply
    2,192.18x = 3,288.27 × 653.06
  4. Step 4: Simplify right side
    2,192.18x = 2,147,437.61
  5. Step 5: Solve for x
    x = 2,147,437.61/2,192.18
  6. Step 6: Final answer
    x = 979.59

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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.