Home / 5,242.89-7,235.19-2,884.98

Finding the Fourth Proportional to 5,242.89, 7,235.19 and 2,884.98

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Solution

The fourth proportional to 5,242.89, 7,235.19 and 2,884.98 is: 3,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.89 : 7,235.19 = 2,884.98 : x
  2. Step 2: Convert to fraction form
    5,242.89/7,235.19 = 2,884.98/x
  3. Step 3: Cross multiply
    5,242.89x = 7,235.19 × 2,884.98
  4. Step 4: Simplify right side
    5,242.89x = 20,873,378.45
  5. Step 5: Solve for x
    x = 20,873,378.45/5,242.89
  6. Step 6: Final answer
    x = 3,981.27

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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.