Home / 5,222.81-7,207.48-2,865.00

Finding the Fourth Proportional to 5,222.81, 7,207.48 and 2,865.00

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Solution

The fourth proportional to 5,222.81, 7,207.48 and 2,865.00 is: 3,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.81 : 7,207.48 = 2,865.00 : x
  2. Step 2: Convert to fraction form
    5,222.81/7,207.48 = 2,865.00/x
  3. Step 3: Cross multiply
    5,222.81x = 7,207.48 × 2,865.00
  4. Step 4: Simplify right side
    5,222.81x = 20,649,460.81
  5. Step 5: Solve for x
    x = 20,649,460.81/5,222.81
  6. Step 6: Final answer
    x = 3,953.71

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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.