Home / 1,825.48-2,518.20-1,078.90

Finding the Fourth Proportional to 1,825.48, 2,518.20 and 1,078.90

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Solution

The fourth proportional to 1,825.48, 2,518.20 and 1,078.90 is: 1,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.48 : 2,518.20 = 1,078.90 : x
  2. Step 2: Convert to fraction form
    1,825.48/2,518.20 = 1,078.90/x
  3. Step 3: Cross multiply
    1,825.48x = 2,518.20 × 1,078.90
  4. Step 4: Simplify right side
    1,825.48x = 2,716,885.98
  5. Step 5: Solve for x
    x = 2,716,885.98/1,825.48
  6. Step 6: Final answer
    x = 1,488.31

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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.