Home / 1,755.20-2,633.28-986.24

Finding the Fourth Proportional to 1,755.20, 2,633.28 and 986.24

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Solution

The fourth proportional to 1,755.20, 2,633.28 and 986.24 is: 1,479.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.20 : 2,633.28 = 986.24 : x
  2. Step 2: Convert to fraction form
    1,755.20/2,633.28 = 986.24/x
  3. Step 3: Cross multiply
    1,755.20x = 2,633.28 × 986.24
  4. Step 4: Simplify right side
    1,755.20x = 2,597,046.07
  5. Step 5: Solve for x
    x = 2,597,046.07/1,755.20
  6. Step 6: Final answer
    x = 1,479.63

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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.