Home / 1,553.66-2,315.50-1,540.74

Finding the Fourth Proportional to 1,553.66, 2,315.50 and 1,540.74

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Solution

The fourth proportional to 1,553.66, 2,315.50 and 1,540.74 is: 2,296.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.66 : 2,315.50 = 1,540.74 : x
  2. Step 2: Convert to fraction form
    1,553.66/2,315.50 = 1,540.74/x
  3. Step 3: Cross multiply
    1,553.66x = 2,315.50 × 1,540.74
  4. Step 4: Simplify right side
    1,553.66x = 3,567,583.47
  5. Step 5: Solve for x
    x = 3,567,583.47/1,553.66
  6. Step 6: Final answer
    x = 2,296.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.