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Finding the Fourth Proportional to 6,507.79, 8,980.74 and 3,713.29

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Solution

The fourth proportional to 6,507.79, 8,980.74 and 3,713.29 is: 5,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507.79 : 8,980.74 = 3,713.29 : x
  2. Step 2: Convert to fraction form
    6,507.79/8,980.74 = 3,713.29/x
  3. Step 3: Cross multiply
    6,507.79x = 8,980.74 × 3,713.29
  4. Step 4: Simplify right side
    6,507.79x = 33,348,092.03
  5. Step 5: Solve for x
    x = 33,348,092.03/6,507.79
  6. Step 6: Final answer
    x = 5,124.33

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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.