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Finding the Fourth Proportional to 3,590.17, 5,385.25 and 1,641

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Solution

The fourth proportional to 3,590.17, 5,385.25 and 1,641 is: 2,461.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.17 : 5,385.25 = 1,641 : x
  2. Step 2: Convert to fraction form
    3,590.17/5,385.25 = 1,641/x
  3. Step 3: Cross multiply
    3,590.17x = 5,385.25 × 1,641
  4. Step 4: Simplify right side
    3,590.17x = 8,837,191.15
  5. Step 5: Solve for x
    x = 8,837,191.15/3,590.17
  6. Step 6: Final answer
    x = 2,461.50

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Double scale
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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.