Home / 5,207.79-7,190.10-4,647.29

Finding the Fourth Proportional to 5,207.79, 7,190.10 and 4,647.29

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Solution

The fourth proportional to 5,207.79, 7,190.10 and 4,647.29 is: 6,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.79 : 7,190.10 = 4,647.29 : x
  2. Step 2: Convert to fraction form
    5,207.79/7,190.10 = 4,647.29/x
  3. Step 3: Cross multiply
    5,207.79x = 7,190.10 × 4,647.29
  4. Step 4: Simplify right side
    5,207.79x = 33,414,468.21
  5. Step 5: Solve for x
    x = 33,414,468.21/5,207.79
  6. Step 6: Final answer
    x = 6,416.25

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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.