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Finding the Fourth Proportional to 1,806.24, 2,714.24 and 985.12

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Solution

The fourth proportional to 1,806.24, 2,714.24 and 985.12 is: 1,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.24 : 2,714.24 = 985.12 : x
  2. Step 2: Convert to fraction form
    1,806.24/2,714.24 = 985.12/x
  3. Step 3: Cross multiply
    1,806.24x = 2,714.24 × 985.12
  4. Step 4: Simplify right side
    1,806.24x = 2,673,852.11
  5. Step 5: Solve for x
    x = 2,673,852.11/1,806.24
  6. Step 6: Final answer
    x = 1,480.34

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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.