Home / 1,854-2,764.62-1,720.08

Finding the Fourth Proportional to 1,854, 2,764.62 and 1,720.08

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Solution

The fourth proportional to 1,854, 2,764.62 and 1,720.08 is: 2,564.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854 : 2,764.62 = 1,720.08 : x
  2. Step 2: Convert to fraction form
    1,854/2,764.62 = 1,720.08/x
  3. Step 3: Cross multiply
    1,854x = 2,764.62 × 1,720.08
  4. Step 4: Simplify right side
    1,854x = 4,755,367.57
  5. Step 5: Solve for x
    x = 4,755,367.57/1,854
  6. Step 6: Final answer
    x = 2,564.92

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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.