Home / 7,224.12-10,835.10-2,780.64

Finding the Fourth Proportional to 7,224.12, 10,835.10 and 2,780.64

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Solution

The fourth proportional to 7,224.12, 10,835.10 and 2,780.64 is: 4,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.12 : 10,835.10 = 2,780.64 : x
  2. Step 2: Convert to fraction form
    7,224.12/10,835.10 = 2,780.64/x
  3. Step 3: Cross multiply
    7,224.12x = 10,835.10 × 2,780.64
  4. Step 4: Simplify right side
    7,224.12x = 30,128,512.46
  5. Step 5: Solve for x
    x = 30,128,512.46/7,224.12
  6. Step 6: Final answer
    x = 4,170.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.