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Finding the Fourth Proportional to 5,341.39, 8,013.15 and 1,643.48

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Solution

The fourth proportional to 5,341.39, 8,013.15 and 1,643.48 is: 2,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,341.39 : 8,013.15 = 1,643.48 : x
  2. Step 2: Convert to fraction form
    5,341.39/8,013.15 = 1,643.48/x
  3. Step 3: Cross multiply
    5,341.39x = 8,013.15 × 1,643.48
  4. Step 4: Simplify right side
    5,341.39x = 13,169,427.62
  5. Step 5: Solve for x
    x = 13,169,427.62/5,341.39
  6. Step 6: Final answer
    x = 2,465.54

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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.