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Finding the Fourth Proportional to 3,590.73, 5,386.70 and 1,643.09

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Solution

The fourth proportional to 3,590.73, 5,386.70 and 1,643.09 is: 2,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.73 : 5,386.70 = 1,643.09 : x
  2. Step 2: Convert to fraction form
    3,590.73/5,386.70 = 1,643.09/x
  3. Step 3: Cross multiply
    3,590.73x = 5,386.70 × 1,643.09
  4. Step 4: Simplify right side
    3,590.73x = 8,850,810.08
  5. Step 5: Solve for x
    x = 8,850,810.08/3,590.73
  6. Step 6: Final answer
    x = 2,464.91

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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.