Home / 1,784.85-2,690.66-1,665.92

Finding the Fourth Proportional to 1,784.85, 2,690.66 and 1,665.92

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Solution

The fourth proportional to 1,784.85, 2,690.66 and 1,665.92 is: 2,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.85 : 2,690.66 = 1,665.92 : x
  2. Step 2: Convert to fraction form
    1,784.85/2,690.66 = 1,665.92/x
  3. Step 3: Cross multiply
    1,784.85x = 2,690.66 × 1,665.92
  4. Step 4: Simplify right side
    1,784.85x = 4,482,402.52
  5. Step 5: Solve for x
    x = 4,482,402.52/1,784.85
  6. Step 6: Final answer
    x = 2,511.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.