Home / 2,982.49-4,116.21-1,803.56

Finding the Fourth Proportional to 2,982.49, 4,116.21 and 1,803.56

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Solution

The fourth proportional to 2,982.49, 4,116.21 and 1,803.56 is: 2,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.49 : 4,116.21 = 1,803.56 : x
  2. Step 2: Convert to fraction form
    2,982.49/4,116.21 = 1,803.56/x
  3. Step 3: Cross multiply
    2,982.49x = 4,116.21 × 1,803.56
  4. Step 4: Simplify right side
    2,982.49x = 7,423,837.49
  5. Step 5: Solve for x
    x = 7,423,837.49/2,982.49
  6. Step 6: Final answer
    x = 2,489.14

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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.