Home / 5,242.61-7,234.65-2,884.75

Finding the Fourth Proportional to 5,242.61, 7,234.65 and 2,884.75

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Solution

The fourth proportional to 5,242.61, 7,234.65 and 2,884.75 is: 3,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.61 : 7,234.65 = 2,884.75 : x
  2. Step 2: Convert to fraction form
    5,242.61/7,234.65 = 2,884.75/x
  3. Step 3: Cross multiply
    5,242.61x = 7,234.65 × 2,884.75
  4. Step 4: Simplify right side
    5,242.61x = 20,870,156.59
  5. Step 5: Solve for x
    x = 20,870,156.59/5,242.61
  6. Step 6: Final answer
    x = 3,980.87

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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.