Home / 1,612.45-2,225.27-982.88

Finding the Fourth Proportional to 1,612.45, 2,225.27 and 982.88

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Solution

The fourth proportional to 1,612.45, 2,225.27 and 982.88 is: 1,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.45 : 2,225.27 = 982.88 : x
  2. Step 2: Convert to fraction form
    1,612.45/2,225.27 = 982.88/x
  3. Step 3: Cross multiply
    1,612.45x = 2,225.27 × 982.88
  4. Step 4: Simplify right side
    1,612.45x = 2,187,173.38
  5. Step 5: Solve for x
    x = 2,187,173.38/1,612.45
  6. Step 6: Final answer
    x = 1,356.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.