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Finding the Fourth Proportional to 5,000.31, 6,899.84 and 2,762.05

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Solution

The fourth proportional to 5,000.31, 6,899.84 and 2,762.05 is: 3,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.31 : 6,899.84 = 2,762.05 : x
  2. Step 2: Convert to fraction form
    5,000.31/6,899.84 = 2,762.05/x
  3. Step 3: Cross multiply
    5,000.31x = 6,899.84 × 2,762.05
  4. Step 4: Simplify right side
    5,000.31x = 19,057,703.07
  5. Step 5: Solve for x
    x = 19,057,703.07/5,000.31
  6. Step 6: Final answer
    x = 3,811.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.