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Finding the Fourth Proportional to 5,341.86, 8,013.69 and 1,643.99

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Solution

The fourth proportional to 5,341.86, 8,013.69 and 1,643.99 is: 2,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,341.86 : 8,013.69 = 1,643.99 : x
  2. Step 2: Convert to fraction form
    5,341.86/8,013.69 = 1,643.99/x
  3. Step 3: Cross multiply
    5,341.86x = 8,013.69 × 1,643.99
  4. Step 4: Simplify right side
    5,341.86x = 13,174,386.15
  5. Step 5: Solve for x
    x = 13,174,386.15/5,341.86
  6. Step 6: Final answer
    x = 2,466.25

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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.