Home / 1,846.29-2,770.65-981.21

Finding the Fourth Proportional to 1,846.29, 2,770.65 and 981.21

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Solution

The fourth proportional to 1,846.29, 2,770.65 and 981.21 is: 1,472.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,846.29 : 2,770.65 = 981.21 : x
  2. Step 2: Convert to fraction form
    1,846.29/2,770.65 = 981.21/x
  3. Step 3: Cross multiply
    1,846.29x = 2,770.65 × 981.21
  4. Step 4: Simplify right side
    1,846.29x = 2,718,589.49
  5. Step 5: Solve for x
    x = 2,718,589.49/1,846.29
  6. Step 6: Final answer
    x = 1,472.46

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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.